feat: Implement admin settings UI, enhance admin authentication with password hashing, and add new streaming runtime logic for Claude and OpenAI adapters with extensive compatibility tests.

TESTING.md

@@ -24,7 +24,7 @@ go test ./...
 ```
 
 ```bash
-node --test api/helpers/stream-tool-sieve.test.js api/chat-stream.test.js
+node --test api/helpers/stream-tool-sieve.test.js api/chat-stream.test.js api/compat/js_compat_test.js
 ```
 
 ### 端到端测试 | End-to-End Tests
@@ -39,7 +39,7 @@ node --test api/helpers/stream-tool-sieve.test.js api/chat-stream.test.js
    - `go test ./... -count=1`（单元测试）
    - `node --check api/chat-stream.js`（语法检查）
    - `node --check api/helpers/stream-tool-sieve.js`（语法检查）
-   - `node --test api/helpers/stream-tool-sieve.test.js api/chat-stream.test.js`（Node 流式拦截单测）
+   - `node --test api/helpers/stream-tool-sieve.test.js api/chat-stream.test.js api/compat/js_compat_test.js`（Node 流式拦截 + compat 单测）
    - `npm run build --prefix webui`（WebUI 构建检查）
 
 2. **隔离启动**：复制 `config.json` 到临时目录，启动独立服务进程

api/chat-stream.js

@@ -10,31 +10,14 @@ const {
   parseToolCalls,
   formatOpenAIStreamToolCalls,
 } = require('./helpers/stream-tool-sieve');
+const {
+  BASE_HEADERS,
+  SKIP_PATTERNS,
+  SKIP_EXACT_PATHS,
+} = require('./shared/deepseek-constants');
 
 const DEEPSEEK_COMPLETION_URL = 'https://chat.deepseek.com/api/v0/chat/completion';
 
-const BASE_HEADERS = {
-  Host: 'chat.deepseek.com',
-  'User-Agent': 'DeepSeek/1.6.11 Android/35',
-  Accept: 'application/json',
-  'Content-Type': 'application/json',
-  'x-client-platform': 'android',
-  'x-client-version': '1.6.11',
-  'x-client-locale': 'zh_CN',
-  'accept-charset': 'UTF-8',
-};
-
-const SKIP_PATTERNS = [
-  'quasi_status',
-  'elapsed_secs',
-  'token_usage',
-  'pending_fragment',
-  'conversation_mode',
-  'fragments/-1/status',
-  'fragments/-2/status',
-  'fragments/-3/status',
-];
-
 module.exports = async function handler(req, res) {
   setCorsHeaders(res);
   if (req.method === 'OPTIONS') {
@@ -725,7 +708,7 @@ function extractContentRecursive(items, defaultType) {
 }
 
 function shouldSkipPath(pathValue) {
-  if (pathValue === 'response/search_status') {
+  if (SKIP_EXACT_PATHS.has(pathValue)) {
     return true;
   }
   for (const p of SKIP_PATTERNS) {
@@ -808,7 +791,16 @@ function estimateTokens(text) {
   if (!t) {
     return 0;
   }
-  const n = Math.floor(Array.from(t).length / 4);
+  let asciiChars = 0;
+  let nonASCIIChars = 0;
+  for (const ch of Array.from(t)) {
+    if (ch.charCodeAt(0) < 128) {
+      asciiChars += 1;
+    } else {
+      nonASCIIChars += 1;
+    }
+  }
+  const n = Math.floor(asciiChars / 4) + Math.floor((nonASCIIChars * 10 + 7) / 13);
   return n < 1 ? 1 : n;
 }
 
@@ -972,4 +964,5 @@ module.exports.__test = {
   resolveToolcallPolicy,
   normalizePreparedToolNames,
   boolDefaultTrue,
+  estimateTokens,
 };

api/compat/js_compat_test.js

@@ -0,0 +1,60 @@
+'use strict';
+
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const path = require('node:path');
+
+const chatStream = require('../chat-stream');
+const { parseToolCalls } = require('../helpers/stream-tool-sieve');
+
+const { parseChunkForContent, estimateTokens } = chatStream.__test;
+
+const compatRoot = path.resolve(__dirname, '../../tests/compat');
+
+function readJSON(filePath) {
+  return JSON.parse(fs.readFileSync(filePath, 'utf8'));
+}
+
+test('js compat: sse fixtures', () => {
+  const fixtureDir = path.join(compatRoot, 'fixtures', 'sse_chunks');
+  const expectedDir = path.join(compatRoot, 'expected');
+  const files = fs.readdirSync(fixtureDir).filter((f) => f.endsWith('.json')).sort();
+  assert.ok(files.length > 0);
+
+  for (const file of files) {
+    const name = file.replace(/\.json$/i, '');
+    const fixture = readJSON(path.join(fixtureDir, file));
+    const expected = readJSON(path.join(expectedDir, `sse_${name}.json`));
+    const got = parseChunkForContent(fixture.chunk, Boolean(fixture.thinking_enabled), fixture.current_type || 'text');
+    assert.deepEqual(got.parts, expected.parts, `${name}: parts mismatch`);
+    assert.equal(got.finished, expected.finished, `${name}: finished mismatch`);
+    assert.equal(got.newType, expected.new_type, `${name}: newType mismatch`);
+  }
+});
+
+test('js compat: toolcall fixtures', () => {
+  const fixtureDir = path.join(compatRoot, 'fixtures', 'toolcalls');
+  const expectedDir = path.join(compatRoot, 'expected');
+  const files = fs.readdirSync(fixtureDir).filter((f) => f.endsWith('.json')).sort();
+  assert.ok(files.length > 0);
+
+  for (const file of files) {
+    const name = file.replace(/\.json$/i, '');
+    const fixture = readJSON(path.join(fixtureDir, file));
+    const expected = readJSON(path.join(expectedDir, `toolcalls_${name}.json`));
+    const got = parseToolCalls(fixture.text, fixture.tool_names || []);
+    assert.deepEqual(got, expected.calls, `${name}: calls mismatch`);
+  }
+});
+
+test('js compat: token fixtures', () => {
+  const fixture = readJSON(path.join(compatRoot, 'fixtures', 'token_cases.json'));
+  const expected = readJSON(path.join(compatRoot, 'expected', 'token_cases.json'));
+  const expectedByName = new Map(expected.cases.map((c) => [c.name, c.tokens]));
+  for (const c of fixture.cases) {
+    assert.ok(expectedByName.has(c.name), `missing expected case: ${c.name}`);
+    const got = estimateTokens(c.text);
+    assert.equal(got, expectedByName.get(c.name), `${c.name}: tokens mismatch`);
+  }
+});

api/shared/deepseek-constants.js

@@ -0,0 +1,66 @@
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+
+const DEFAULT_BASE_HEADERS = Object.freeze({
+  Host: 'chat.deepseek.com',
+  'User-Agent': 'DeepSeek/1.6.11 Android/35',
+  Accept: 'application/json',
+  'Content-Type': 'application/json',
+  'x-client-platform': 'android',
+  'x-client-version': '1.6.11',
+  'x-client-locale': 'zh_CN',
+  'accept-charset': 'UTF-8',
+});
+
+const DEFAULT_SKIP_PATTERNS = Object.freeze([
+  'quasi_status',
+  'elapsed_secs',
+  'token_usage',
+  'pending_fragment',
+  'conversation_mode',
+  'fragments/-1/status',
+  'fragments/-2/status',
+  'fragments/-3/status',
+]);
+
+const DEFAULT_SKIP_EXACT_PATHS = Object.freeze([
+  'response/search_status',
+]);
+
+function loadSharedConstants() {
+  const sharedPath = path.resolve(__dirname, '../../internal/deepseek/constants_shared.json');
+  try {
+    const raw = fs.readFileSync(sharedPath, 'utf8');
+    const parsed = JSON.parse(raw);
+    const baseHeaders = parsed && typeof parsed.base_headers === 'object' && !Array.isArray(parsed.base_headers)
+      ? { ...DEFAULT_BASE_HEADERS, ...parsed.base_headers }
+      : { ...DEFAULT_BASE_HEADERS };
+    const skipPatterns = Array.isArray(parsed && parsed.skip_contains_patterns)
+      ? parsed.skip_contains_patterns.filter((v) => typeof v === 'string' && v !== '')
+      : [...DEFAULT_SKIP_PATTERNS];
+    const skipExactPaths = Array.isArray(parsed && parsed.skip_exact_paths)
+      ? parsed.skip_exact_paths.filter((v) => typeof v === 'string' && v !== '')
+      : [...DEFAULT_SKIP_EXACT_PATHS];
+    return {
+      baseHeaders,
+      skipPatterns,
+      skipExactPaths,
+    };
+  } catch (_err) {
+    return {
+      baseHeaders: { ...DEFAULT_BASE_HEADERS },
+      skipPatterns: [...DEFAULT_SKIP_PATTERNS],
+      skipExactPaths: [...DEFAULT_SKIP_EXACT_PATHS],
+    };
+  }
+}
+
+const shared = loadSharedConstants();
+
+module.exports = {
+  BASE_HEADERS: Object.freeze(shared.baseHeaders),
+  SKIP_PATTERNS: Object.freeze(shared.skipPatterns),
+  SKIP_EXACT_PATHS: new Set(shared.skipExactPaths),
+};

internal/account/pool.go

@@ -20,13 +20,18 @@ type Pool struct {
 	maxInflightPerAccount  int
 	recommendedConcurrency int
 	maxQueueSize           int
+	globalMaxInflight      int
 }
 
 func NewPool(store *config.Store) *Pool {
+	maxPer := 2
+	if store != nil {
+		maxPer = store.RuntimeAccountMaxInflight()
+	}
 	p := &Pool{
 		store:                 store,
 		inUse:                 map[string]int{},
-		maxInflightPerAccount: maxInflightFromEnv(),
+		maxInflightPerAccount: maxPer,
 	}
 	p.Reset()
 	return p
@@ -49,8 +54,18 @@ func (p *Pool) Reset() {
 			ids = append(ids, id)
 		}
 	}
+	if p.store != nil {
+		p.maxInflightPerAccount = p.store.RuntimeAccountMaxInflight()
+	} else {
+		p.maxInflightPerAccount = maxInflightFromEnv()
+	}
 	recommended := defaultRecommendedConcurrency(len(ids), p.maxInflightPerAccount)
 	queueLimit := maxQueueFromEnv(recommended)
+	globalLimit := recommended
+	if p.store != nil {
+		queueLimit = p.store.RuntimeAccountMaxQueue(recommended)
+		globalLimit = p.store.RuntimeGlobalMaxInflight(recommended)
+	}
 	p.mu.Lock()
 	defer p.mu.Unlock()
 	p.drainWaitersLocked()
@@ -58,10 +73,12 @@ func (p *Pool) Reset() {
 	p.inUse = map[string]int{}
 	p.recommendedConcurrency = recommended
 	p.maxQueueSize = queueLimit
+	p.globalMaxInflight = globalLimit
 	config.Logger.Info(
 		"[init_account_queue] initialized",
 		"total", len(ids),
 		"max_inflight_per_account", p.maxInflightPerAccount,
+		"global_max_inflight", p.globalMaxInflight,
 		"recommended_concurrency", p.recommendedConcurrency,
 		"max_queue_size", p.maxQueueSize,
 	)
@@ -109,7 +126,7 @@ func (p *Pool) AcquireWait(ctx context.Context, target string, exclude map[strin
 
 func (p *Pool) acquireLocked(target string, exclude map[string]bool) (config.Account, bool) {
 	if target != "" {
-		if exclude[target] || p.inUse[target] >= p.maxInflightPerAccount {
+		if exclude[target] || !p.canAcquireIDLocked(target) {
 			return config.Account{}, false
 		}
 		acc, ok := p.store.FindAccount(target)
@@ -133,7 +150,7 @@ func (p *Pool) acquireLocked(target string, exclude map[string]bool) (config.Acc
 func (p *Pool) tryAcquire(exclude map[string]bool, requireToken bool) (config.Account, bool) {
 	for i := 0; i < len(p.queue); i++ {
 		id := p.queue[i]
-		if exclude[id] || p.inUse[id] >= p.maxInflightPerAccount {
+		if exclude[id] || !p.canAcquireIDLocked(id) {
 			continue
 		}
 		acc, ok := p.store.FindAccount(id)
@@ -205,12 +222,35 @@ func (p *Pool) Status() map[string]any {
 		"available_accounts":       available,
 		"in_use_accounts":          inUseAccounts,
 		"max_inflight_per_account": p.maxInflightPerAccount,
+		"global_max_inflight":      p.globalMaxInflight,
 		"recommended_concurrency":  p.recommendedConcurrency,
 		"waiting":                  len(p.waiters),
 		"max_queue_size":           p.maxQueueSize,
 	}
 }
 
+func (p *Pool) ApplyRuntimeLimits(maxInflightPerAccount, maxQueueSize, globalMaxInflight int) {
+	if maxInflightPerAccount <= 0 {
+		maxInflightPerAccount = 1
+	}
+	if maxQueueSize < 0 {
+		maxQueueSize = 0
+	}
+	if globalMaxInflight <= 0 {
+		globalMaxInflight = maxInflightPerAccount * len(p.store.Accounts())
+		if globalMaxInflight <= 0 {
+			globalMaxInflight = maxInflightPerAccount
+		}
+	}
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	p.maxInflightPerAccount = maxInflightPerAccount
+	p.maxQueueSize = maxQueueSize
+	p.globalMaxInflight = globalMaxInflight
+	p.recommendedConcurrency = defaultRecommendedConcurrency(len(p.queue), p.maxInflightPerAccount)
+	p.notifyWaiterLocked()
+}
+
 func maxInflightFromEnv() int {
 	for _, key := range []string{"DS2API_ACCOUNT_MAX_INFLIGHT", "DS2API_ACCOUNT_CONCURRENCY"} {
 		raw := strings.TrimSpace(os.Getenv(key))
@@ -300,3 +340,24 @@ func maxQueueFromEnv(defaultSize int) int {
 	}
 	return defaultSize
 }
+
+func (p *Pool) canAcquireIDLocked(accountID string) bool {
+	if accountID == "" {
+		return false
+	}
+	if p.inUse[accountID] >= p.maxInflightPerAccount {
+		return false
+	}
+	if p.globalMaxInflight > 0 && p.currentInUseLocked() >= p.globalMaxInflight {
+		return false
+	}
+	return true
+}
+
+func (p *Pool) currentInUseLocked() int {
+	total := 0
+	for _, n := range p.inUse {
+		total += n
+	}
+	return total
+}

internal/adapter/claude/convert.go

@@ -0,0 +1,11 @@
+package claude
+
+import (
+	"ds2api/internal/claudeconv"
+)
+
+const defaultClaudeModel = "claude-sonnet-4-5"
+
+func convertClaudeToDeepSeek(claudeReq map[string]any, store ConfigReader) map[string]any {
+	return claudeconv.ConvertClaudeToDeepSeek(claudeReq, store, defaultClaudeModel)
+}

internal/adapter/claude/deps.go

@@ -0,0 +1,29 @@
+package claude
+
+import (
+	"context"
+	"net/http"
+
+	"ds2api/internal/auth"
+	"ds2api/internal/config"
+	"ds2api/internal/deepseek"
+)
+
+type AuthResolver interface {
+	Determine(req *http.Request) (*auth.RequestAuth, error)
+	Release(a *auth.RequestAuth)
+}
+
+type DeepSeekCaller interface {
+	CreateSession(ctx context.Context, a *auth.RequestAuth, maxAttempts int) (string, error)
+	GetPow(ctx context.Context, a *auth.RequestAuth, maxAttempts int) (string, error)
+	CallCompletion(ctx context.Context, a *auth.RequestAuth, payload map[string]any, powResp string, maxAttempts int) (*http.Response, error)
+}
+
+type ConfigReader interface {
+	ClaudeMapping() map[string]string
+}
+
+var _ AuthResolver = (*auth.Resolver)(nil)
+var _ DeepSeekCaller = (*deepseek.Client)(nil)
+var _ ConfigReader = (*config.Store)(nil)

internal/adapter/claude/deps_injection_test.go

@@ -0,0 +1,33 @@
+package claude
+
+import "testing"
+
+type mockClaudeConfig struct {
+	m map[string]string
+}
+
+func (m mockClaudeConfig) ClaudeMapping() map[string]string { return m.m }
+
+func TestNormalizeClaudeRequestUsesConfigInterfaceMapping(t *testing.T) {
+	req := map[string]any{
+		"model": "claude-opus-4-6",
+		"messages": []any{
+			map[string]any{"role": "user", "content": "hello"},
+		},
+	}
+	out, err := normalizeClaudeRequest(mockClaudeConfig{
+		m: map[string]string{
+			"fast": "deepseek-chat",
+			"slow": "deepseek-reasoner-search",
+		},
+	}, req)
+	if err != nil {
+		t.Fatalf("normalizeClaudeRequest error: %v", err)
+	}
+	if out.Standard.ResolvedModel != "deepseek-reasoner-search" {
+		t.Fatalf("resolved model mismatch: got=%q", out.Standard.ResolvedModel)
+	}
+	if !out.Standard.Thinking || !out.Standard.Search {
+		t.Fatalf("unexpected flags: thinking=%v search=%v", out.Standard.Thinking, out.Standard.Search)
+	}
+}

internal/adapter/claude/handler.go

@@ -13,7 +13,9 @@ import (
 	"ds2api/internal/auth"
 	"ds2api/internal/config"
 	"ds2api/internal/deepseek"
+	claudefmt "ds2api/internal/format/claude"
 	"ds2api/internal/sse"
+	streamengine "ds2api/internal/stream"
 	"ds2api/internal/util"
 )
 
@@ -21,9 +23,9 @@ import (
 var writeJSON = util.WriteJSON
 
 type Handler struct {
-	Store *config.Store
-	Auth  *auth.Resolver
-	DS    *deepseek.Client
+	Store ConfigReader
+	Auth  AuthResolver
+	DS    DeepSeekCaller
 }
 
 var (
@@ -98,7 +100,7 @@ func (h *Handler) Messages(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	result := sse.CollectStream(resp, stdReq.Thinking, true)
-	respBody := util.BuildClaudeMessageResponse(
+	respBody := claudefmt.BuildMessageResponse(
 		fmt.Sprintf("msg_%d", time.Now().UnixNano()),
 		stdReq.ResponseModel,
 		norm.NormalizedMessages,
@@ -169,279 +171,38 @@ func (h *Handler) handleClaudeStreamRealtime(w http.ResponseWriter, r *http.Requ
 	if !canFlush {
 		config.Logger.Warn("[claude_stream] response writer does not support flush; streaming may be buffered")
 	}
-	send := func(event string, v any) {
-		b, _ := json.Marshal(v)
-		_, _ = w.Write([]byte("event: "))
-		_, _ = w.Write([]byte(event))
-		_, _ = w.Write([]byte("\n"))
-		_, _ = w.Write([]byte("data: "))
-		_, _ = w.Write(b)
-		_, _ = w.Write([]byte("\n\n"))
-		if canFlush {
-			_ = rc.Flush()
-		}
-	}
-	sendError := func(message string) {
-		msg := strings.TrimSpace(message)
-		if msg == "" {
-			msg = "upstream stream error"
-		}
-		send("error", map[string]any{
-			"type": "error",
-			"error": map[string]any{
-				"type":    "api_error",
-				"message": msg,
-				"code":    "internal_error",
-				"param":   nil,
-			},
-		})
-	}
 
-	messageID := fmt.Sprintf("msg_%d", time.Now().UnixNano())
-	inputTokens := util.EstimateTokens(fmt.Sprintf("%v", messages))
-	send("message_start", map[string]any{
-		"type": "message_start",
-		"message": map[string]any{
-			"id":            messageID,
-			"type":          "message",
-			"role":          "assistant",
-			"model":         model,
-			"content":       []any{},
-			"stop_reason":   nil,
-			"stop_sequence": nil,
-			"usage":         map[string]any{"input_tokens": inputTokens, "output_tokens": 0},
-		},
-	})
+	streamRuntime := newClaudeStreamRuntime(
+		w,
+		rc,
+		canFlush,
+		model,
+		messages,
+		thinkingEnabled,
+		searchEnabled,
+		toolNames,
+	)
+	streamRuntime.sendMessageStart()
 
 	initialType := "text"
 	if thinkingEnabled {
 		initialType = "thinking"
 	}
-	parsedLines, done := sse.StartParsedLinePump(r.Context(), resp.Body, thinkingEnabled, initialType)
-	bufferToolContent := len(toolNames) > 0
-	hasContent := false
-	lastContent := time.Now()
-	keepaliveCount := 0
-
-	thinking := strings.Builder{}
-	text := strings.Builder{}
-
-	nextBlockIndex := 0
-	thinkingBlockOpen := false
-	thinkingBlockIndex := -1
-	textBlockOpen := false
-	textBlockIndex := -1
-	ended := false
-
-	closeThinkingBlock := func() {
-		if !thinkingBlockOpen {
-			return
-		}
-		send("content_block_stop", map[string]any{
-			"type":  "content_block_stop",
-			"index": thinkingBlockIndex,
-		})
-		thinkingBlockOpen = false
-		thinkingBlockIndex = -1
-	}
-	closeTextBlock := func() {
-		if !textBlockOpen {
-			return
-		}
-		send("content_block_stop", map[string]any{
-			"type":  "content_block_stop",
-			"index": textBlockIndex,
-		})
-		textBlockOpen = false
-		textBlockIndex = -1
-	}
-
-	finalize := func(stopReason string) {
-		if ended {
-			return
-		}
-		ended = true
-
-		closeThinkingBlock()
-		closeTextBlock()
-
-		finalThinking := thinking.String()
-		finalText := text.String()
-
-		if bufferToolContent {
-			detected := util.ParseToolCalls(finalText, toolNames)
-			if len(detected) > 0 {
-				stopReason = "tool_use"
-				for i, tc := range detected {
-					idx := nextBlockIndex + i
-					send("content_block_start", map[string]any{
-						"type":  "content_block_start",
-						"index": idx,
-						"content_block": map[string]any{
-							"type":  "tool_use",
-							"id":    fmt.Sprintf("toolu_%d_%d", time.Now().Unix(), idx),
-							"name":  tc.Name,
-							"input": tc.Input,
-						},
-					})
-					send("content_block_stop", map[string]any{
-						"type":  "content_block_stop",
-						"index": idx,
-					})
-				}
-				nextBlockIndex += len(detected)
-			} else if finalText != "" {
-				idx := nextBlockIndex
-				nextBlockIndex++
-				send("content_block_start", map[string]any{
-					"type":  "content_block_start",
-					"index": idx,
-					"content_block": map[string]any{
-						"type": "text",
-						"text": "",
-					},
-				})
-				send("content_block_delta", map[string]any{
-					"type":  "content_block_delta",
-					"index": idx,
-					"delta": map[string]any{
-						"type": "text_delta",
-						"text": finalText,
-					},
-				})
-				send("content_block_stop", map[string]any{
-					"type":  "content_block_stop",
-					"index": idx,
-				})
-			}
-		}
-
-		outputTokens := util.EstimateTokens(finalThinking) + util.EstimateTokens(finalText)
-		send("message_delta", map[string]any{
-			"type": "message_delta",
-			"delta": map[string]any{
-				"stop_reason":   stopReason,
-				"stop_sequence": nil,
-			},
-			"usage": map[string]any{
-				"output_tokens": outputTokens,
-			},
-		})
-		send("message_stop", map[string]any{"type": "message_stop"})
-	}
-
-	pingTicker := time.NewTicker(claudeStreamPingInterval)
-	defer pingTicker.Stop()
-
-	for {
-		select {
-		case <-r.Context().Done():
-			return
-		case <-pingTicker.C:
-			if !hasContent {
-				keepaliveCount++
-				if keepaliveCount >= claudeStreamMaxKeepaliveCnt {
-					finalize("end_turn")
-					return
-				}
-			}
-			if hasContent && time.Since(lastContent) > claudeStreamIdleTimeout {
-				finalize("end_turn")
-				return
-			}
-			send("ping", map[string]any{"type": "ping"})
-		case parsed, ok := <-parsedLines:
-			if !ok {
-				if err := <-done; err != nil {
-					sendError(err.Error())
-					return
-				}
-				finalize("end_turn")
-				return
-			}
-			if !parsed.Parsed {
-				continue
-			}
-			if parsed.ErrorMessage != "" {
-				sendError(parsed.ErrorMessage)
-				return
-			}
-			if parsed.Stop {
-				finalize("end_turn")
-				return
-			}
-
-			for _, p := range parsed.Parts {
-				if p.Text == "" {
-					continue
-				}
-				if p.Type != "thinking" && searchEnabled && sse.IsCitation(p.Text) {
-					continue
-				}
-
-				hasContent = true
-				lastContent = time.Now()
-				keepaliveCount = 0
-
-				if p.Type == "thinking" {
-					if !thinkingEnabled {
-						continue
-					}
-					thinking.WriteString(p.Text)
-					closeTextBlock()
-					if !thinkingBlockOpen {
-						thinkingBlockIndex = nextBlockIndex
-						nextBlockIndex++
-						send("content_block_start", map[string]any{
-							"type":  "content_block_start",
-							"index": thinkingBlockIndex,
-							"content_block": map[string]any{
-								"type":     "thinking",
-								"thinking": "",
-							},
-						})
-						thinkingBlockOpen = true
-					}
-					send("content_block_delta", map[string]any{
-						"type":  "content_block_delta",
-						"index": thinkingBlockIndex,
-						"delta": map[string]any{
-							"type":     "thinking_delta",
-							"thinking": p.Text,
-						},
-					})
-					continue
-				}
-
-				text.WriteString(p.Text)
-				if bufferToolContent {
-					continue
-				}
-				closeThinkingBlock()
-				if !textBlockOpen {
-					textBlockIndex = nextBlockIndex
-					nextBlockIndex++
-					send("content_block_start", map[string]any{
-						"type":  "content_block_start",
-						"index": textBlockIndex,
-						"content_block": map[string]any{
-							"type": "text",
-							"text": "",
-						},
-					})
-					textBlockOpen = true
-				}
-				send("content_block_delta", map[string]any{
-					"type":  "content_block_delta",
-					"index": textBlockIndex,
-					"delta": map[string]any{
-						"type": "text_delta",
-						"text": p.Text,
-					},
-				})
-			}
-		}
-	}
+	streamengine.ConsumeSSE(streamengine.ConsumeConfig{
+		Context:             r.Context(),
+		Body:                resp.Body,
+		ThinkingEnabled:     thinkingEnabled,
+		InitialType:         initialType,
+		KeepAliveInterval:   claudeStreamPingInterval,
+		IdleTimeout:         claudeStreamIdleTimeout,
+		MaxKeepAliveNoInput: claudeStreamMaxKeepaliveCnt,
+	}, streamengine.ConsumeHooks{
+		OnKeepAlive: func() {
+			streamRuntime.sendPing()
+		},
+		OnParsed:   streamRuntime.onParsed,
+		OnFinalize: streamRuntime.onFinalize,
+	})
 }
 
 func writeClaudeError(w http.ResponseWriter, status int, message string) {

internal/adapter/claude/standard_request.go

@@ -5,6 +5,7 @@ import (
 	"strings"
 
 	"ds2api/internal/config"
+	"ds2api/internal/deepseek"
 	"ds2api/internal/util"
 )
 
@@ -13,7 +14,7 @@ type claudeNormalizedRequest struct {
 	NormalizedMessages []any
 }
 
-func normalizeClaudeRequest(store *config.Store, req map[string]any) (claudeNormalizedRequest, error) {
+func normalizeClaudeRequest(store ConfigReader, req map[string]any) (claudeNormalizedRequest, error) {
 	model, _ := req["model"].(string)
 	messagesRaw, _ := req["messages"].([]any)
 	if strings.TrimSpace(model) == "" || len(messagesRaw) == 0 {
@@ -30,14 +31,14 @@ func normalizeClaudeRequest(store *config.Store, req map[string]any) (claudeNorm
 		payload["messages"] = append([]any{map[string]any{"role": "system", "content": buildClaudeToolPrompt(toolsRequested)}}, normalizedMessages...)
 	}
 
-	dsPayload := util.ConvertClaudeToDeepSeek(payload, store)
+	dsPayload := convertClaudeToDeepSeek(payload, store)
 	dsModel, _ := dsPayload["model"].(string)
 	thinkingEnabled, searchEnabled, ok := config.GetModelConfig(dsModel)
 	if !ok {
 		thinkingEnabled = false
 		searchEnabled = false
 	}
-	finalPrompt := util.MessagesPrepare(toMessageMaps(dsPayload["messages"]))
+	finalPrompt := deepseek.MessagesPrepare(toMessageMaps(dsPayload["messages"]))
 	toolNames := extractClaudeToolNames(toolsRequested)
 
 	return claudeNormalizedRequest{

internal/adapter/claude/stream_runtime.go

@@ -0,0 +1,308 @@
+package claude
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"ds2api/internal/sse"
+	streamengine "ds2api/internal/stream"
+	"ds2api/internal/util"
+)
+
+type claudeStreamRuntime struct {
+	w        http.ResponseWriter
+	rc       *http.ResponseController
+	canFlush bool
+
+	model     string
+	toolNames []string
+	messages  []any
+
+	thinkingEnabled   bool
+	searchEnabled     bool
+	bufferToolContent bool
+
+	messageID string
+	thinking  strings.Builder
+	text      strings.Builder
+
+	nextBlockIndex     int
+	thinkingBlockOpen  bool
+	thinkingBlockIndex int
+	textBlockOpen      bool
+	textBlockIndex     int
+	ended              bool
+	upstreamErr        string
+}
+
+func newClaudeStreamRuntime(
+	w http.ResponseWriter,
+	rc *http.ResponseController,
+	canFlush bool,
+	model string,
+	messages []any,
+	thinkingEnabled bool,
+	searchEnabled bool,
+	toolNames []string,
+) *claudeStreamRuntime {
+	return &claudeStreamRuntime{
+		w:                  w,
+		rc:                 rc,
+		canFlush:           canFlush,
+		model:              model,
+		messages:           messages,
+		thinkingEnabled:    thinkingEnabled,
+		searchEnabled:      searchEnabled,
+		bufferToolContent:  len(toolNames) > 0,
+		toolNames:          toolNames,
+		messageID:          fmt.Sprintf("msg_%d", time.Now().UnixNano()),
+		thinkingBlockIndex: -1,
+		textBlockIndex:     -1,
+	}
+}
+
+func (s *claudeStreamRuntime) send(event string, v any) {
+	b, _ := json.Marshal(v)
+	_, _ = s.w.Write([]byte("event: "))
+	_, _ = s.w.Write([]byte(event))
+	_, _ = s.w.Write([]byte("\n"))
+	_, _ = s.w.Write([]byte("data: "))
+	_, _ = s.w.Write(b)
+	_, _ = s.w.Write([]byte("\n\n"))
+	if s.canFlush {
+		_ = s.rc.Flush()
+	}
+}
+
+func (s *claudeStreamRuntime) sendError(message string) {
+	msg := strings.TrimSpace(message)
+	if msg == "" {
+		msg = "upstream stream error"
+	}
+	s.send("error", map[string]any{
+		"type": "error",
+		"error": map[string]any{
+			"type":    "api_error",
+			"message": msg,
+			"code":    "internal_error",
+			"param":   nil,
+		},
+	})
+}
+
+func (s *claudeStreamRuntime) sendPing() {
+	s.send("ping", map[string]any{"type": "ping"})
+}
+
+func (s *claudeStreamRuntime) sendMessageStart() {
+	inputTokens := util.EstimateTokens(fmt.Sprintf("%v", s.messages))
+	s.send("message_start", map[string]any{
+		"type": "message_start",
+		"message": map[string]any{
+			"id":            s.messageID,
+			"type":          "message",
+			"role":          "assistant",
+			"model":         s.model,
+			"content":       []any{},
+			"stop_reason":   nil,
+			"stop_sequence": nil,
+			"usage":         map[string]any{"input_tokens": inputTokens, "output_tokens": 0},
+		},
+	})
+}
+
+func (s *claudeStreamRuntime) closeThinkingBlock() {
+	if !s.thinkingBlockOpen {
+		return
+	}
+	s.send("content_block_stop", map[string]any{
+		"type":  "content_block_stop",
+		"index": s.thinkingBlockIndex,
+	})
+	s.thinkingBlockOpen = false
+	s.thinkingBlockIndex = -1
+}
+
+func (s *claudeStreamRuntime) closeTextBlock() {
+	if !s.textBlockOpen {
+		return
+	}
+	s.send("content_block_stop", map[string]any{
+		"type":  "content_block_stop",
+		"index": s.textBlockIndex,
+	})
+	s.textBlockOpen = false
+	s.textBlockIndex = -1
+}
+
+func (s *claudeStreamRuntime) finalize(stopReason string) {
+	if s.ended {
+		return
+	}
+	s.ended = true
+
+	s.closeThinkingBlock()
+	s.closeTextBlock()
+
+	finalThinking := s.thinking.String()
+	finalText := s.text.String()
+
+	if s.bufferToolContent {
+		detected := util.ParseToolCalls(finalText, s.toolNames)
+		if len(detected) > 0 {
+			stopReason = "tool_use"
+			for i, tc := range detected {
+				idx := s.nextBlockIndex + i
+				s.send("content_block_start", map[string]any{
+					"type":  "content_block_start",
+					"index": idx,
+					"content_block": map[string]any{
+						"type":  "tool_use",
+						"id":    fmt.Sprintf("toolu_%d_%d", time.Now().Unix(), idx),
+						"name":  tc.Name,
+						"input": tc.Input,
+					},
+				})
+				s.send("content_block_stop", map[string]any{
+					"type":  "content_block_stop",
+					"index": idx,
+				})
+			}
+			s.nextBlockIndex += len(detected)
+		} else if finalText != "" {
+			idx := s.nextBlockIndex
+			s.nextBlockIndex++
+			s.send("content_block_start", map[string]any{
+				"type":  "content_block_start",
+				"index": idx,
+				"content_block": map[string]any{
+					"type": "text",
+					"text": "",
+				},
+			})
+			s.send("content_block_delta", map[string]any{
+				"type":  "content_block_delta",
+				"index": idx,
+				"delta": map[string]any{
+					"type": "text_delta",
+					"text": finalText,
+				},
+			})
+			s.send("content_block_stop", map[string]any{
+				"type":  "content_block_stop",
+				"index": idx,
+			})
+		}
+	}
+
+	outputTokens := util.EstimateTokens(finalThinking) + util.EstimateTokens(finalText)
+	s.send("message_delta", map[string]any{
+		"type": "message_delta",
+		"delta": map[string]any{
+			"stop_reason":   stopReason,
+			"stop_sequence": nil,
+		},
+		"usage": map[string]any{
+			"output_tokens": outputTokens,
+		},
+	})
+	s.send("message_stop", map[string]any{"type": "message_stop"})
+}
+
+func (s *claudeStreamRuntime) onParsed(parsed sse.LineResult) streamengine.ParsedDecision {
+	if !parsed.Parsed {
+		return streamengine.ParsedDecision{}
+	}
+	if parsed.ErrorMessage != "" {
+		s.upstreamErr = parsed.ErrorMessage
+		return streamengine.ParsedDecision{Stop: true, StopReason: streamengine.StopReason("upstream_error")}
+	}
+	if parsed.Stop {
+		return streamengine.ParsedDecision{Stop: true}
+	}
+
+	contentSeen := false
+	for _, p := range parsed.Parts {
+		if p.Text == "" {
+			continue
+		}
+		if p.Type != "thinking" && s.searchEnabled && sse.IsCitation(p.Text) {
+			continue
+		}
+		contentSeen = true
+
+		if p.Type == "thinking" {
+			if !s.thinkingEnabled {
+				continue
+			}
+			s.thinking.WriteString(p.Text)
+			s.closeTextBlock()
+			if !s.thinkingBlockOpen {
+				s.thinkingBlockIndex = s.nextBlockIndex
+				s.nextBlockIndex++
+				s.send("content_block_start", map[string]any{
+					"type":  "content_block_start",
+					"index": s.thinkingBlockIndex,
+					"content_block": map[string]any{
+						"type":     "thinking",
+						"thinking": "",
+					},
+				})
+				s.thinkingBlockOpen = true
+			}
+			s.send("content_block_delta", map[string]any{
+				"type":  "content_block_delta",
+				"index": s.thinkingBlockIndex,
+				"delta": map[string]any{
+					"type":     "thinking_delta",
+					"thinking": p.Text,
+				},
+			})
+			continue
+		}
+
+		s.text.WriteString(p.Text)
+		if s.bufferToolContent {
+			continue
+		}
+		s.closeThinkingBlock()
+		if !s.textBlockOpen {
+			s.textBlockIndex = s.nextBlockIndex
+			s.nextBlockIndex++
+			s.send("content_block_start", map[string]any{
+				"type":  "content_block_start",
+				"index": s.textBlockIndex,
+				"content_block": map[string]any{
+					"type": "text",
+					"text": "",
+				},
+			})
+			s.textBlockOpen = true
+		}
+		s.send("content_block_delta", map[string]any{
+			"type":  "content_block_delta",
+			"index": s.textBlockIndex,
+			"delta": map[string]any{
+				"type": "text_delta",
+				"text": p.Text,
+			},
+		})
+	}
+
+	return streamengine.ParsedDecision{ContentSeen: contentSeen}
+}
+
+func (s *claudeStreamRuntime) onFinalize(reason streamengine.StopReason, scannerErr error) {
+	if string(reason) == "upstream_error" {
+		s.sendError(s.upstreamErr)
+		return
+	}
+	if scannerErr != nil {
+		s.sendError(scannerErr.Error())
+		return
+	}
+	s.finalize("end_turn")
+}

internal/adapter/openai/chat_stream_runtime.go

@@ -0,0 +1,237 @@
+package openai
+
+import (
+	"encoding/json"
+	"net/http"
+	"strings"
+
+	openaifmt "ds2api/internal/format/openai"
+	"ds2api/internal/sse"
+	streamengine "ds2api/internal/stream"
+	"ds2api/internal/util"
+)
+
+type chatStreamRuntime struct {
+	w        http.ResponseWriter
+	rc       *http.ResponseController
+	canFlush bool
+
+	completionID string
+	created      int64
+	model        string
+	finalPrompt  string
+	toolNames    []string
+
+	thinkingEnabled bool
+	searchEnabled   bool
+
+	firstChunkSent      bool
+	bufferToolContent   bool
+	emitEarlyToolDeltas bool
+	toolCallsEmitted    bool
+
+	toolSieve         toolStreamSieveState
+	streamToolCallIDs map[int]string
+	thinking          strings.Builder
+	text              strings.Builder
+}
+
+func newChatStreamRuntime(
+	w http.ResponseWriter,
+	rc *http.ResponseController,
+	canFlush bool,
+	completionID string,
+	created int64,
+	model string,
+	finalPrompt string,
+	thinkingEnabled bool,
+	searchEnabled bool,
+	toolNames []string,
+	bufferToolContent bool,
+	emitEarlyToolDeltas bool,
+) *chatStreamRuntime {
+	return &chatStreamRuntime{
+		w:                   w,
+		rc:                  rc,
+		canFlush:            canFlush,
+		completionID:        completionID,
+		created:             created,
+		model:               model,
+		finalPrompt:         finalPrompt,
+		toolNames:           toolNames,
+		thinkingEnabled:     thinkingEnabled,
+		searchEnabled:       searchEnabled,
+		bufferToolContent:   bufferToolContent,
+		emitEarlyToolDeltas: emitEarlyToolDeltas,
+		streamToolCallIDs:   map[int]string{},
+	}
+}
+
+func (s *chatStreamRuntime) sendKeepAlive() {
+	if !s.canFlush {
+		return
+	}
+	_, _ = s.w.Write([]byte(": keep-alive\n\n"))
+	_ = s.rc.Flush()
+}
+
+func (s *chatStreamRuntime) sendChunk(v any) {
+	b, _ := json.Marshal(v)
+	_, _ = s.w.Write([]byte("data: "))
+	_, _ = s.w.Write(b)
+	_, _ = s.w.Write([]byte("\n\n"))
+	if s.canFlush {
+		_ = s.rc.Flush()
+	}
+}
+
+func (s *chatStreamRuntime) sendDone() {
+	_, _ = s.w.Write([]byte("data: [DONE]\n\n"))
+	if s.canFlush {
+		_ = s.rc.Flush()
+	}
+}
+
+func (s *chatStreamRuntime) finalize(finishReason string) {
+	finalThinking := s.thinking.String()
+	finalText := s.text.String()
+	detected := util.ParseToolCalls(finalText, s.toolNames)
+	if len(detected) > 0 && !s.toolCallsEmitted {
+		finishReason = "tool_calls"
+		delta := map[string]any{
+			"tool_calls": util.FormatOpenAIStreamToolCalls(detected),
+		}
+		if !s.firstChunkSent {
+			delta["role"] = "assistant"
+			s.firstChunkSent = true
+		}
+		s.sendChunk(openaifmt.BuildChatStreamChunk(
+			s.completionID,
+			s.created,
+			s.model,
+			[]map[string]any{openaifmt.BuildChatStreamDeltaChoice(0, delta)},
+			nil,
+		))
+	} else if s.bufferToolContent {
+		for _, evt := range flushToolSieve(&s.toolSieve, s.toolNames) {
+			if evt.Content == "" {
+				continue
+			}
+			delta := map[string]any{
+				"content": evt.Content,
+			}
+			if !s.firstChunkSent {
+				delta["role"] = "assistant"
+				s.firstChunkSent = true
+			}
+			s.sendChunk(openaifmt.BuildChatStreamChunk(
+				s.completionID,
+				s.created,
+				s.model,
+				[]map[string]any{openaifmt.BuildChatStreamDeltaChoice(0, delta)},
+				nil,
+			))
+		}
+	}
+
+	if len(detected) > 0 || s.toolCallsEmitted {
+		finishReason = "tool_calls"
+	}
+	s.sendChunk(openaifmt.BuildChatStreamChunk(
+		s.completionID,
+		s.created,
+		s.model,
+		[]map[string]any{openaifmt.BuildChatStreamFinishChoice(0, finishReason)},
+		openaifmt.BuildChatUsage(s.finalPrompt, finalThinking, finalText),
+	))
+	s.sendDone()
+}
+
+func (s *chatStreamRuntime) onParsed(parsed sse.LineResult) streamengine.ParsedDecision {
+	if !parsed.Parsed {
+		return streamengine.ParsedDecision{}
+	}
+	if parsed.ContentFilter || parsed.ErrorMessage != "" {
+		return streamengine.ParsedDecision{Stop: true, StopReason: streamengine.StopReason("content_filter")}
+	}
+	if parsed.Stop {
+		return streamengine.ParsedDecision{Stop: true, StopReason: streamengine.StopReasonHandlerRequested}
+	}
+
+	newChoices := make([]map[string]any, 0, len(parsed.Parts))
+	contentSeen := false
+	for _, p := range parsed.Parts {
+		if s.searchEnabled && sse.IsCitation(p.Text) {
+			continue
+		}
+		if p.Text == "" {
+			continue
+		}
+		contentSeen = true
+		delta := map[string]any{}
+		if !s.firstChunkSent {
+			delta["role"] = "assistant"
+			s.firstChunkSent = true
+		}
+		if p.Type == "thinking" {
+			if s.thinkingEnabled {
+				s.thinking.WriteString(p.Text)
+				delta["reasoning_content"] = p.Text
+			}
+		} else {
+			s.text.WriteString(p.Text)
+			if !s.bufferToolContent {
+				delta["content"] = p.Text
+			} else {
+				events := processToolSieveChunk(&s.toolSieve, p.Text, s.toolNames)
+				for _, evt := range events {
+					if len(evt.ToolCallDeltas) > 0 {
+						if !s.emitEarlyToolDeltas {
+							continue
+						}
+						s.toolCallsEmitted = true
+						tcDelta := map[string]any{
+							"tool_calls": formatIncrementalStreamToolCallDeltas(evt.ToolCallDeltas, s.streamToolCallIDs),
+						}
+						if !s.firstChunkSent {
+							tcDelta["role"] = "assistant"
+							s.firstChunkSent = true
+						}
+						newChoices = append(newChoices, openaifmt.BuildChatStreamDeltaChoice(0, tcDelta))
+						continue
+					}
+					if len(evt.ToolCalls) > 0 {
+						s.toolCallsEmitted = true
+						tcDelta := map[string]any{
+							"tool_calls": util.FormatOpenAIStreamToolCalls(evt.ToolCalls),
+						}
+						if !s.firstChunkSent {
+							tcDelta["role"] = "assistant"
+							s.firstChunkSent = true
+						}
+						newChoices = append(newChoices, openaifmt.BuildChatStreamDeltaChoice(0, tcDelta))
+						continue
+					}
+					if evt.Content != "" {
+						contentDelta := map[string]any{
+							"content": evt.Content,
+						}
+						if !s.firstChunkSent {
+							contentDelta["role"] = "assistant"
+							s.firstChunkSent = true
+						}
+						newChoices = append(newChoices, openaifmt.BuildChatStreamDeltaChoice(0, contentDelta))
+					}
+				}
+			}
+		}
+		if len(delta) > 0 {
+			newChoices = append(newChoices, openaifmt.BuildChatStreamDeltaChoice(0, delta))
+		}
+	}
+
+	if len(newChoices) > 0 {
+		s.sendChunk(openaifmt.BuildChatStreamChunk(s.completionID, s.created, s.model, newChoices, nil))
+	}
+	return streamengine.ParsedDecision{ContentSeen: contentSeen}
+}

internal/adapter/openai/deps.go

@@ -0,0 +1,35 @@
+package openai
+
+import (
+	"context"
+	"net/http"
+
+	"ds2api/internal/auth"
+	"ds2api/internal/config"
+	"ds2api/internal/deepseek"
+)
+
+type AuthResolver interface {
+	Determine(req *http.Request) (*auth.RequestAuth, error)
+	DetermineCaller(req *http.Request) (*auth.RequestAuth, error)
+	Release(a *auth.RequestAuth)
+}
+
+type DeepSeekCaller interface {
+	CreateSession(ctx context.Context, a *auth.RequestAuth, maxAttempts int) (string, error)
+	GetPow(ctx context.Context, a *auth.RequestAuth, maxAttempts int) (string, error)
+	CallCompletion(ctx context.Context, a *auth.RequestAuth, payload map[string]any, powResp string, maxAttempts int) (*http.Response, error)
+}
+
+type ConfigReader interface {
+	ModelAliases() map[string]string
+	CompatWideInputStrictOutput() bool
+	ToolcallMode() string
+	ToolcallEarlyEmitConfidence() string
+	ResponsesStoreTTLSeconds() int
+	EmbeddingsProvider() string
+}
+
+var _ AuthResolver = (*auth.Resolver)(nil)
+var _ DeepSeekCaller = (*deepseek.Client)(nil)
+var _ ConfigReader = (*config.Store)(nil)

internal/adapter/openai/deps_injection_test.go

@@ -0,0 +1,70 @@
+package openai
+
+import "testing"
+
+type mockOpenAIConfig struct {
+	aliases      map[string]string
+	wideInput    bool
+	toolMode     string
+	earlyEmit    string
+	responsesTTL int
+	embedProv    string
+}
+
+func (m mockOpenAIConfig) ModelAliases() map[string]string { return m.aliases }
+func (m mockOpenAIConfig) CompatWideInputStrictOutput() bool {
+	return m.wideInput
+}
+func (m mockOpenAIConfig) ToolcallMode() string                { return m.toolMode }
+func (m mockOpenAIConfig) ToolcallEarlyEmitConfidence() string { return m.earlyEmit }
+func (m mockOpenAIConfig) ResponsesStoreTTLSeconds() int       { return m.responsesTTL }
+func (m mockOpenAIConfig) EmbeddingsProvider() string          { return m.embedProv }
+
+func TestNormalizeOpenAIChatRequestWithConfigInterface(t *testing.T) {
+	cfg := mockOpenAIConfig{
+		aliases: map[string]string{
+			"my-model": "deepseek-chat-search",
+		},
+		wideInput: true,
+	}
+	req := map[string]any{
+		"model":    "my-model",
+		"messages": []any{map[string]any{"role": "user", "content": "hello"}},
+	}
+	out, err := normalizeOpenAIChatRequest(cfg, req)
+	if err != nil {
+		t.Fatalf("normalizeOpenAIChatRequest error: %v", err)
+	}
+	if out.ResolvedModel != "deepseek-chat-search" {
+		t.Fatalf("resolved model mismatch: got=%q", out.ResolvedModel)
+	}
+	if !out.Search || out.Thinking {
+		t.Fatalf("unexpected model flags: thinking=%v search=%v", out.Thinking, out.Search)
+	}
+}
+
+func TestNormalizeOpenAIResponsesRequestWideInputPolicyFromInterface(t *testing.T) {
+	req := map[string]any{
+		"model": "deepseek-chat",
+		"input": "hi",
+	}
+
+	_, err := normalizeOpenAIResponsesRequest(mockOpenAIConfig{
+		aliases:   map[string]string{},
+		wideInput: false,
+	}, req)
+	if err == nil {
+		t.Fatal("expected error when wide input is disabled and only input is provided")
+	}
+
+	out, err := normalizeOpenAIResponsesRequest(mockOpenAIConfig{
+		aliases:   map[string]string{},
+		wideInput: true,
+	}, req)
+	if err != nil {
+		t.Fatalf("unexpected error when wide input is enabled: %v", err)
+	}
+	if out.Surface != "openai_responses" {
+		t.Fatalf("unexpected surface: %q", out.Surface)
+	}
+}

internal/adapter/openai/handler.go

@@ -16,7 +16,9 @@ import (
 	"ds2api/internal/auth"
 	"ds2api/internal/config"
 	"ds2api/internal/deepseek"
+	openaifmt "ds2api/internal/format/openai"
 	"ds2api/internal/sse"
+	streamengine "ds2api/internal/stream"
 	"ds2api/internal/util"
 )
 
@@ -25,9 +27,9 @@ import (
 var writeJSON = util.WriteJSON
 
 type Handler struct {
-	Store *config.Store
-	Auth  *auth.Resolver
-	DS    *deepseek.Client
+	Store ConfigReader
+	Auth  AuthResolver
+	DS    DeepSeekCaller
 
 	leaseMu      sync.Mutex
 	streamLeases map[string]streamLease
@@ -136,7 +138,7 @@ func (h *Handler) handleNonStream(w http.ResponseWriter, ctx context.Context, re
 
 	finalThinking := result.Thinking
 	finalText := result.Text
-	respBody := util.BuildOpenAIChatCompletion(completionID, model, finalPrompt, finalThinking, finalText, toolNames)
+	respBody := openaifmt.BuildChatCompletion(completionID, model, finalPrompt, finalThinking, finalText, toolNames)
 	writeJSON(w, http.StatusOK, respBody)
 }
 
@@ -158,214 +160,49 @@ func (h *Handler) handleStream(w http.ResponseWriter, r *http.Request, resp *htt
 	}
 
 	created := time.Now().Unix()
-	firstChunkSent := false
 	bufferToolContent := len(toolNames) > 0 && h.toolcallFeatureMatchEnabled()
 	emitEarlyToolDeltas := h.toolcallEarlyEmitHighConfidence()
-	var toolSieve toolStreamSieveState
-	toolCallsEmitted := false
-	streamToolCallIDs := map[int]string{}
 	initialType := "text"
 	if thinkingEnabled {
 		initialType = "thinking"
 	}
-	parsedLines, done := sse.StartParsedLinePump(r.Context(), resp.Body, thinkingEnabled, initialType)
-	thinking := strings.Builder{}
-	text := strings.Builder{}
-	lastContent := time.Now()
-	hasContent := false
-	keepaliveTicker := time.NewTicker(time.Duration(deepseek.KeepAliveTimeout) * time.Second)
-	defer keepaliveTicker.Stop()
-	keepaliveCountWithoutContent := 0
 
-	sendChunk := func(v any) {
-		b, _ := json.Marshal(v)
-		_, _ = w.Write([]byte("data: "))
-		_, _ = w.Write(b)
-		_, _ = w.Write([]byte("\n\n"))
-		if canFlush {
-			_ = rc.Flush()
-		}
-	}
-	sendDone := func() {
-		_, _ = w.Write([]byte("data: [DONE]\n\n"))
-		if canFlush {
-			_ = rc.Flush()
-		}
-	}
+	streamRuntime := newChatStreamRuntime(
+		w,
+		rc,
+		canFlush,
+		completionID,
+		created,
+		model,
+		finalPrompt,
+		thinkingEnabled,
+		searchEnabled,
+		toolNames,
+		bufferToolContent,
+		emitEarlyToolDeltas,
+	)
 
-	finalize := func(finishReason string) {
-		finalThinking := thinking.String()
-		finalText := text.String()
-		detected := util.ParseToolCalls(finalText, toolNames)
-		if len(detected) > 0 && !toolCallsEmitted {
-			finishReason = "tool_calls"
-			delta := map[string]any{
-				"tool_calls": util.FormatOpenAIStreamToolCalls(detected),
-			}
-			if !firstChunkSent {
-				delta["role"] = "assistant"
-				firstChunkSent = true
-			}
-			sendChunk(util.BuildOpenAIChatStreamChunk(
-				completionID,
-				created,
-				model,
-				[]map[string]any{util.BuildOpenAIChatStreamDeltaChoice(0, delta)},
-				nil,
-			))
-		} else if bufferToolContent {
-			for _, evt := range flushToolSieve(&toolSieve, toolNames) {
-				if evt.Content == "" {
-					continue
-				}
-				delta := map[string]any{
-					"content": evt.Content,
-				}
-				if !firstChunkSent {
-					delta["role"] = "assistant"
-					firstChunkSent = true
-				}
-				sendChunk(util.BuildOpenAIChatStreamChunk(
-					completionID,
-					created,
-					model,
-					[]map[string]any{util.BuildOpenAIChatStreamDeltaChoice(0, delta)},
-					nil,
-				))
-			}
-		}
-		if len(detected) > 0 || toolCallsEmitted {
-			finishReason = "tool_calls"
-		}
-		sendChunk(util.BuildOpenAIChatStreamChunk(
-			completionID,
-			created,
-			model,
-			[]map[string]any{util.BuildOpenAIChatStreamFinishChoice(0, finishReason)},
-			util.BuildOpenAIChatUsage(finalPrompt, finalThinking, finalText),
-		))
-		sendDone()
-	}
-
-	for {
-		select {
-		case <-r.Context().Done():
-			return
-		case <-keepaliveTicker.C:
-			if !hasContent {
-				keepaliveCountWithoutContent++
-				if keepaliveCountWithoutContent >= deepseek.MaxKeepaliveCount {
-					finalize("stop")
-					return
-				}
-			}
-			if hasContent && time.Since(lastContent) > time.Duration(deepseek.StreamIdleTimeout)*time.Second {
-				finalize("stop")
+	streamengine.ConsumeSSE(streamengine.ConsumeConfig{
+		Context:             r.Context(),
+		Body:                resp.Body,
+		ThinkingEnabled:     thinkingEnabled,
+		InitialType:         initialType,
+		KeepAliveInterval:   time.Duration(deepseek.KeepAliveTimeout) * time.Second,
+		IdleTimeout:         time.Duration(deepseek.StreamIdleTimeout) * time.Second,
+		MaxKeepAliveNoInput: deepseek.MaxKeepaliveCount,
+	}, streamengine.ConsumeHooks{
+		OnKeepAlive: func() {
+			streamRuntime.sendKeepAlive()
+		},
+		OnParsed: streamRuntime.onParsed,
+		OnFinalize: func(reason streamengine.StopReason, _ error) {
+			if string(reason) == "content_filter" {
+				streamRuntime.finalize("content_filter")
 				return
 			}
-			if canFlush {
-				_, _ = w.Write([]byte(": keep-alive\n\n"))
-				_ = rc.Flush()
-			}
-		case parsed, ok := <-parsedLines:
-			if !ok {
-				// Ensure scanner completion is observed only after all queued
-				// SSE lines are drained, avoiding early finalize races.
-				_ = <-done
-				finalize("stop")
-				return
-			}
-			if !parsed.Parsed {
-				continue
-			}
-			if parsed.ContentFilter || parsed.ErrorMessage != "" {
-				finalize("content_filter")
-				return
-			}
-			if parsed.Stop {
-				finalize("stop")
-				return
-			}
-			newChoices := make([]map[string]any, 0, len(parsed.Parts))
-			for _, p := range parsed.Parts {
-				if searchEnabled && sse.IsCitation(p.Text) {
-					continue
-				}
-				if p.Text == "" {
-					continue
-				}
-				hasContent = true
-				lastContent = time.Now()
-				keepaliveCountWithoutContent = 0
-				delta := map[string]any{}
-				if !firstChunkSent {
-					delta["role"] = "assistant"
-					firstChunkSent = true
-				}
-				if p.Type == "thinking" {
-					if thinkingEnabled {
-						thinking.WriteString(p.Text)
-						delta["reasoning_content"] = p.Text
-					}
-				} else {
-					text.WriteString(p.Text)
-					if !bufferToolContent {
-						delta["content"] = p.Text
-					} else {
-						events := processToolSieveChunk(&toolSieve, p.Text, toolNames)
-						if len(events) == 0 {
-							// Keep thinking delta only frame.
-						}
-						for _, evt := range events {
-							if len(evt.ToolCallDeltas) > 0 {
-								if !emitEarlyToolDeltas {
-									continue
-								}
-								toolCallsEmitted = true
-								tcDelta := map[string]any{
-									"tool_calls": formatIncrementalStreamToolCallDeltas(evt.ToolCallDeltas, streamToolCallIDs),
-								}
-								if !firstChunkSent {
-									tcDelta["role"] = "assistant"
-									firstChunkSent = true
-								}
-								newChoices = append(newChoices, util.BuildOpenAIChatStreamDeltaChoice(0, tcDelta))
-								continue
-							}
-							if len(evt.ToolCalls) > 0 {
-								toolCallsEmitted = true
-								tcDelta := map[string]any{
-									"tool_calls": util.FormatOpenAIStreamToolCalls(evt.ToolCalls),
-								}
-								if !firstChunkSent {
-									tcDelta["role"] = "assistant"
-									firstChunkSent = true
-								}
-								newChoices = append(newChoices, util.BuildOpenAIChatStreamDeltaChoice(0, tcDelta))
-								continue
-							}
-							if evt.Content != "" {
-								contentDelta := map[string]any{
-									"content": evt.Content,
-								}
-								if !firstChunkSent {
-									contentDelta["role"] = "assistant"
-									firstChunkSent = true
-								}
-								newChoices = append(newChoices, util.BuildOpenAIChatStreamDeltaChoice(0, contentDelta))
-							}
-						}
-					}
-				}
-				if len(delta) > 0 {
-					newChoices = append(newChoices, util.BuildOpenAIChatStreamDeltaChoice(0, delta))
-				}
-			}
-			if len(newChoices) > 0 {
-				sendChunk(util.BuildOpenAIChatStreamChunk(completionID, created, model, newChoices, nil))
-			}
-		}
-	}
+			streamRuntime.finalize("stop")
+		},
+	})
 }
 
 func injectToolPrompt(messages []map[string]any, tools []any) ([]map[string]any, []string) {

internal/adapter/openai/prompt_build.go

@@ -1,6 +1,8 @@
 package openai
 
-import "ds2api/internal/util"
+import (
+	"ds2api/internal/deepseek"
+)
 
 func buildOpenAIFinalPrompt(messagesRaw []any, toolsRaw any) (string, []string) {
 	messages := normalizeOpenAIMessagesForPrompt(messagesRaw)
@@ -8,5 +10,5 @@ func buildOpenAIFinalPrompt(messagesRaw []any, toolsRaw any) (string, []string)
 	if tools, ok := toolsRaw.([]any); ok && len(tools) > 0 {
 		messages, toolNames = injectToolPrompt(messages, tools)
 	}
-	return util.MessagesPrepare(messages), toolNames
+	return deepseek.MessagesPrepare(messages), toolNames
 }

internal/adapter/openai/responses_handler.go

@@ -6,13 +6,16 @@ import (
 	"io"
 	"net/http"
 	"strings"
+	"time"
 
 	"github.com/go-chi/chi/v5"
 	"github.com/google/uuid"
 
 	"ds2api/internal/auth"
+	"ds2api/internal/deepseek"
+	openaifmt "ds2api/internal/format/openai"
 	"ds2api/internal/sse"
-	"ds2api/internal/util"
+	streamengine "ds2api/internal/stream"
 )
 
 func (h *Handler) GetResponseByID(w http.ResponseWriter, r *http.Request) {
@@ -108,7 +111,7 @@ func (h *Handler) handleResponsesNonStream(w http.ResponseWriter, resp *http.Res
 		return
 	}
 	result := sse.CollectStream(resp, thinkingEnabled, true)
-	responseObj := util.BuildOpenAIResponseObject(responseID, model, finalPrompt, result.Thinking, result.Text, toolNames)
+	responseObj := openaifmt.BuildResponseObject(responseID, model, finalPrompt, result.Thinking, result.Text, toolNames)
 	h.getResponseStore().put(owner, responseID, responseObj)
 	writeJSON(w, http.StatusOK, responseObj)
 }
@@ -127,114 +130,45 @@ func (h *Handler) handleResponsesStream(w http.ResponseWriter, r *http.Request,
 	rc := http.NewResponseController(w)
 	canFlush := rc.Flush() == nil
 
-	sendEvent := func(event string, payload map[string]any) {
-		b, _ := json.Marshal(payload)
-		_, _ = w.Write([]byte("event: " + event + "\n"))
-		_, _ = w.Write([]byte("data: "))
-		_, _ = w.Write(b)
-		_, _ = w.Write([]byte("\n\n"))
-		if canFlush {
-			_ = rc.Flush()
-		}
-	}
-
-	sendEvent("response.created", util.BuildOpenAIResponsesCreatedPayload(responseID, model))
-
 	initialType := "text"
 	if thinkingEnabled {
 		initialType = "thinking"
 	}
-	parsedLines, done := sse.StartParsedLinePump(r.Context(), resp.Body, thinkingEnabled, initialType)
 	bufferToolContent := len(toolNames) > 0 && h.toolcallFeatureMatchEnabled()
 	emitEarlyToolDeltas := h.toolcallEarlyEmitHighConfidence()
-	var sieve toolStreamSieveState
-	thinking := strings.Builder{}
-	text := strings.Builder{}
-	toolCallsEmitted := false
-	streamToolCallIDs := map[int]string{}
 
-	finalize := func() {
-		finalThinking := thinking.String()
-		finalText := text.String()
-		if bufferToolContent {
-			for _, evt := range flushToolSieve(&sieve, toolNames) {
-				if evt.Content != "" {
-					sendEvent("response.output_text.delta", util.BuildOpenAIResponsesTextDeltaPayload(responseID, evt.Content))
-				}
-				if len(evt.ToolCalls) > 0 {
-					toolCallsEmitted = true
-					sendEvent("response.output_tool_call.done", util.BuildOpenAIResponsesToolCallDonePayload(responseID, util.FormatOpenAIStreamToolCalls(evt.ToolCalls)))
-				}
-			}
-		}
-		obj := util.BuildOpenAIResponseObject(responseID, model, finalPrompt, finalThinking, finalText, toolNames)
-		if toolCallsEmitted {
-			obj["status"] = "completed"
-		}
-		h.getResponseStore().put(owner, responseID, obj)
-		sendEvent("response.completed", util.BuildOpenAIResponsesCompletedPayload(obj))
-		_, _ = w.Write([]byte("data: [DONE]\n\n"))
-		if canFlush {
-			_ = rc.Flush()
-		}
-	}
+	streamRuntime := newResponsesStreamRuntime(
+		w,
+		rc,
+		canFlush,
+		responseID,
+		model,
+		finalPrompt,
+		thinkingEnabled,
+		searchEnabled,
+		toolNames,
+		bufferToolContent,
+		emitEarlyToolDeltas,
+		func(obj map[string]any) {
+			h.getResponseStore().put(owner, responseID, obj)
+		},
+	)
+	streamRuntime.sendCreated()
 
-	for {
-		select {
-		case <-r.Context().Done():
-			return
-		case parsed, ok := <-parsedLines:
-			if !ok {
-				_ = <-done
-				finalize()
-				return
-			}
-			if !parsed.Parsed {
-				continue
-			}
-			if parsed.ContentFilter || parsed.ErrorMessage != "" || parsed.Stop {
-				finalize()
-				return
-			}
-			for _, p := range parsed.Parts {
-				if p.Text == "" {
-					continue
-				}
-				if p.Type != "thinking" && searchEnabled && sse.IsCitation(p.Text) {
-					continue
-				}
-				if p.Type == "thinking" {
-					if !thinkingEnabled {
-						continue
-					}
-					thinking.WriteString(p.Text)
-					sendEvent("response.reasoning.delta", util.BuildOpenAIResponsesReasoningDeltaPayload(responseID, p.Text))
-					continue
-				}
-				text.WriteString(p.Text)
-				if !bufferToolContent {
-					sendEvent("response.output_text.delta", util.BuildOpenAIResponsesTextDeltaPayload(responseID, p.Text))
-					continue
-				}
-				for _, evt := range processToolSieveChunk(&sieve, p.Text, toolNames) {
-					if evt.Content != "" {
-						sendEvent("response.output_text.delta", util.BuildOpenAIResponsesTextDeltaPayload(responseID, evt.Content))
-					}
-					if len(evt.ToolCallDeltas) > 0 {
-						if !emitEarlyToolDeltas {
-							continue
-						}
-						toolCallsEmitted = true
-						sendEvent("response.output_tool_call.delta", util.BuildOpenAIResponsesToolCallDeltaPayload(responseID, formatIncrementalStreamToolCallDeltas(evt.ToolCallDeltas, streamToolCallIDs)))
-					}
-					if len(evt.ToolCalls) > 0 {
-						toolCallsEmitted = true
-						sendEvent("response.output_tool_call.done", util.BuildOpenAIResponsesToolCallDonePayload(responseID, util.FormatOpenAIStreamToolCalls(evt.ToolCalls)))
-					}
-				}
-			}
-		}
-	}
+	streamengine.ConsumeSSE(streamengine.ConsumeConfig{
+		Context:             r.Context(),
+		Body:                resp.Body,
+		ThinkingEnabled:     thinkingEnabled,
+		InitialType:         initialType,
+		KeepAliveInterval:   time.Duration(deepseek.KeepAliveTimeout) * time.Second,
+		IdleTimeout:         time.Duration(deepseek.StreamIdleTimeout) * time.Second,
+		MaxKeepAliveNoInput: deepseek.MaxKeepaliveCount,
+	}, streamengine.ConsumeHooks{
+		OnParsed: streamRuntime.onParsed,
+		OnFinalize: func(_ streamengine.StopReason, _ error) {
+			streamRuntime.finalize()
+		},
+	})
 }
 
 func responsesMessagesFromRequest(req map[string]any) []any {

internal/adapter/openai/responses_stream_runtime.go

@@ -0,0 +1,168 @@
+package openai
+
+import (
+	"encoding/json"
+	"net/http"
+	"strings"
+
+	openaifmt "ds2api/internal/format/openai"
+	"ds2api/internal/sse"
+	streamengine "ds2api/internal/stream"
+	"ds2api/internal/util"
+)
+
+type responsesStreamRuntime struct {
+	w        http.ResponseWriter
+	rc       *http.ResponseController
+	canFlush bool
+
+	responseID  string
+	model       string
+	finalPrompt string
+	toolNames   []string
+
+	thinkingEnabled bool
+	searchEnabled   bool
+
+	bufferToolContent   bool
+	emitEarlyToolDeltas bool
+	toolCallsEmitted    bool
+
+	sieve             toolStreamSieveState
+	thinking          strings.Builder
+	text              strings.Builder
+	streamToolCallIDs map[int]string
+
+	persistResponse func(obj map[string]any)
+}
+
+func newResponsesStreamRuntime(
+	w http.ResponseWriter,
+	rc *http.ResponseController,
+	canFlush bool,
+	responseID string,
+	model string,
+	finalPrompt string,
+	thinkingEnabled bool,
+	searchEnabled bool,
+	toolNames []string,
+	bufferToolContent bool,
+	emitEarlyToolDeltas bool,
+	persistResponse func(obj map[string]any),
+) *responsesStreamRuntime {
+	return &responsesStreamRuntime{
+		w:                   w,
+		rc:                  rc,
+		canFlush:            canFlush,
+		responseID:          responseID,
+		model:               model,
+		finalPrompt:         finalPrompt,
+		thinkingEnabled:     thinkingEnabled,
+		searchEnabled:       searchEnabled,
+		toolNames:           toolNames,
+		bufferToolContent:   bufferToolContent,
+		emitEarlyToolDeltas: emitEarlyToolDeltas,
+		streamToolCallIDs:   map[int]string{},
+		persistResponse:     persistResponse,
+	}
+}
+
+func (s *responsesStreamRuntime) sendEvent(event string, payload map[string]any) {
+	b, _ := json.Marshal(payload)
+	_, _ = s.w.Write([]byte("event: " + event + "\n"))
+	_, _ = s.w.Write([]byte("data: "))
+	_, _ = s.w.Write(b)
+	_, _ = s.w.Write([]byte("\n\n"))
+	if s.canFlush {
+		_ = s.rc.Flush()
+	}
+}
+
+func (s *responsesStreamRuntime) sendCreated() {
+	s.sendEvent("response.created", openaifmt.BuildResponsesCreatedPayload(s.responseID, s.model))
+}
+
+func (s *responsesStreamRuntime) sendDone() {
+	_, _ = s.w.Write([]byte("data: [DONE]\n\n"))
+	if s.canFlush {
+		_ = s.rc.Flush()
+	}
+}
+
+func (s *responsesStreamRuntime) finalize() {
+	finalThinking := s.thinking.String()
+	finalText := s.text.String()
+	if s.bufferToolContent {
+		for _, evt := range flushToolSieve(&s.sieve, s.toolNames) {
+			if evt.Content != "" {
+				s.sendEvent("response.output_text.delta", openaifmt.BuildResponsesTextDeltaPayload(s.responseID, evt.Content))
+			}
+			if len(evt.ToolCalls) > 0 {
+				s.toolCallsEmitted = true
+				s.sendEvent("response.output_tool_call.done", openaifmt.BuildResponsesToolCallDonePayload(s.responseID, util.FormatOpenAIStreamToolCalls(evt.ToolCalls)))
+			}
+		}
+	}
+
+	obj := openaifmt.BuildResponseObject(s.responseID, s.model, s.finalPrompt, finalThinking, finalText, s.toolNames)
+	if s.toolCallsEmitted {
+		obj["status"] = "completed"
+	}
+	if s.persistResponse != nil {
+		s.persistResponse(obj)
+	}
+	s.sendEvent("response.completed", openaifmt.BuildResponsesCompletedPayload(obj))
+	s.sendDone()
+}
+
+func (s *responsesStreamRuntime) onParsed(parsed sse.LineResult) streamengine.ParsedDecision {
+	if !parsed.Parsed {
+		return streamengine.ParsedDecision{}
+	}
+	if parsed.ContentFilter || parsed.ErrorMessage != "" || parsed.Stop {
+		return streamengine.ParsedDecision{Stop: true}
+	}
+
+	contentSeen := false
+	for _, p := range parsed.Parts {
+		if p.Text == "" {
+			continue
+		}
+		if p.Type != "thinking" && s.searchEnabled && sse.IsCitation(p.Text) {
+			continue
+		}
+		contentSeen = true
+		if p.Type == "thinking" {
+			if !s.thinkingEnabled {
+				continue
+			}
+			s.thinking.WriteString(p.Text)
+			s.sendEvent("response.reasoning.delta", openaifmt.BuildResponsesReasoningDeltaPayload(s.responseID, p.Text))
+			continue
+		}
+
+		s.text.WriteString(p.Text)
+		if !s.bufferToolContent {
+			s.sendEvent("response.output_text.delta", openaifmt.BuildResponsesTextDeltaPayload(s.responseID, p.Text))
+			continue
+		}
+		for _, evt := range processToolSieveChunk(&s.sieve, p.Text, s.toolNames) {
+			if evt.Content != "" {
+				s.sendEvent("response.output_text.delta", openaifmt.BuildResponsesTextDeltaPayload(s.responseID, evt.Content))
+			}
+			if len(evt.ToolCallDeltas) > 0 {
+				if !s.emitEarlyToolDeltas {
+					continue
+				}
+				s.toolCallsEmitted = true
+				s.sendEvent("response.output_tool_call.delta", openaifmt.BuildResponsesToolCallDeltaPayload(s.responseID, formatIncrementalStreamToolCallDeltas(evt.ToolCallDeltas, s.streamToolCallIDs)))
+			}
+			if len(evt.ToolCalls) > 0 {
+				s.toolCallsEmitted = true
+				s.sendEvent("response.output_tool_call.done", openaifmt.BuildResponsesToolCallDonePayload(s.responseID, util.FormatOpenAIStreamToolCalls(evt.ToolCalls)))
+			}
+		}
+	}
+
+	return streamengine.ParsedDecision{ContentSeen: contentSeen}
+}

internal/adapter/openai/standard_request.go

@@ -8,7 +8,7 @@ import (
 	"ds2api/internal/util"
 )
 
-func normalizeOpenAIChatRequest(store *config.Store, req map[string]any) (util.StandardRequest, error) {
+func normalizeOpenAIChatRequest(store ConfigReader, req map[string]any) (util.StandardRequest, error) {
 	model, _ := req["model"].(string)
 	messagesRaw, _ := req["messages"].([]any)
 	if strings.TrimSpace(model) == "" || len(messagesRaw) == 0 {
@@ -41,7 +41,7 @@ func normalizeOpenAIChatRequest(store *config.Store, req map[string]any) (util.S
 	}, nil
 }
 
-func normalizeOpenAIResponsesRequest(store *config.Store, req map[string]any) (util.StandardRequest, error) {
+func normalizeOpenAIResponsesRequest(store ConfigReader, req map[string]any) (util.StandardRequest, error) {
 	model, _ := req["model"].(string)
 	model = strings.TrimSpace(model)
 	if model == "" {

internal/admin/deps.go

@@ -0,0 +1,46 @@
+package admin
+
+import (
+	"context"
+	"net/http"
+
+	"ds2api/internal/account"
+	"ds2api/internal/auth"
+	"ds2api/internal/config"
+	"ds2api/internal/deepseek"
+)
+
+type ConfigStore interface {
+	Snapshot() config.Config
+	Keys() []string
+	Accounts() []config.Account
+	FindAccount(identifier string) (config.Account, bool)
+	UpdateAccountToken(identifier, token string) error
+	Update(mutator func(*config.Config) error) error
+	ExportJSONAndBase64() (string, string, error)
+	IsEnvBacked() bool
+	SetVercelSync(hash string, ts int64) error
+	AdminPasswordHash() string
+	AdminJWTExpireHours() int
+	AdminJWTValidAfterUnix() int64
+	RuntimeAccountMaxInflight() int
+	RuntimeAccountMaxQueue(defaultSize int) int
+	RuntimeGlobalMaxInflight(defaultSize int) int
+}
+
+type PoolController interface {
+	Reset()
+	Status() map[string]any
+	ApplyRuntimeLimits(maxInflightPerAccount, maxQueueSize, globalMaxInflight int)
+}
+
+type DeepSeekCaller interface {
+	Login(ctx context.Context, acc config.Account) (string, error)
+	CreateSession(ctx context.Context, a *auth.RequestAuth, maxAttempts int) (string, error)
+	GetPow(ctx context.Context, a *auth.RequestAuth, maxAttempts int) (string, error)
+	CallCompletion(ctx context.Context, a *auth.RequestAuth, payload map[string]any, powResp string, maxAttempts int) (*http.Response, error)
+}
+
+var _ ConfigStore = (*config.Store)(nil)
+var _ PoolController = (*account.Pool)(nil)
+var _ DeepSeekCaller = (*deepseek.Client)(nil)

internal/admin/handler.go

@@ -2,16 +2,12 @@ package admin
 
 import (
 	"github.com/go-chi/chi/v5"
-
-	"ds2api/internal/account"
-	"ds2api/internal/config"
-	"ds2api/internal/deepseek"
 )
 
 type Handler struct {
-	Store *config.Store
-	Pool  *account.Pool
-	DS    *deepseek.Client
+	Store ConfigStore
+	Pool  PoolController
+	DS    DeepSeekCaller
 }
 
 func RegisterRoutes(r chi.Router, h *Handler) {
@@ -22,6 +18,11 @@ func RegisterRoutes(r chi.Router, h *Handler) {
 		pr.Get("/vercel/config", h.getVercelConfig)
 		pr.Get("/config", h.getConfig)
 		pr.Post("/config", h.updateConfig)
+		pr.Get("/settings", h.getSettings)
+		pr.Put("/settings", h.updateSettings)
+		pr.Post("/settings/password", h.updateSettingsPassword)
+		pr.Post("/config/import", h.configImport)
+		pr.Get("/config/export", h.configExport)
 		pr.Post("/keys", h.addKey)
 		pr.Delete("/keys/{key}", h.deleteKey)
 		pr.Get("/accounts", h.listAccounts)

internal/admin/handler_auth.go

@@ -12,7 +12,7 @@ import (
 
 func (h *Handler) requireAdmin(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if err := authn.VerifyAdminRequest(r); err != nil {
+		if err := authn.VerifyAdminRequestWithStore(r, h.Store); err != nil {
 			writeJSON(w, http.StatusUnauthorized, map[string]any{"detail": err.Error()})
 			return
 		}
@@ -25,18 +25,18 @@ func (h *Handler) login(w http.ResponseWriter, r *http.Request) {
 	_ = json.NewDecoder(r.Body).Decode(&req)
 	adminKey, _ := req["admin_key"].(string)
 	expireHours := intFrom(req["expire_hours"])
-	if expireHours <= 0 {
-		expireHours = 24
-	}
-	if adminKey != authn.AdminKey() {
+	if !authn.VerifyAdminCredential(adminKey, h.Store) {
 		writeJSON(w, http.StatusUnauthorized, map[string]any{"detail": "Invalid admin key"})
 		return
 	}
-	token, err := authn.CreateJWT(expireHours)
+	token, err := authn.CreateJWTWithStore(expireHours, h.Store)
 	if err != nil {
 		writeJSON(w, http.StatusInternalServerError, map[string]any{"detail": err.Error()})
 		return
 	}
+	if expireHours <= 0 {
+		expireHours = h.Store.AdminJWTExpireHours()
+	}
 	writeJSON(w, http.StatusOK, map[string]any{"success": true, "token": token, "expires_in": expireHours * 3600})
 }
 
@@ -47,7 +47,7 @@ func (h *Handler) verify(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	token := strings.TrimSpace(header[7:])
-	payload, err := authn.VerifyJWT(token)
+	payload, err := authn.VerifyJWTWithStore(token, h.Store)
 	if err != nil {
 		writeJSON(w, http.StatusUnauthorized, map[string]any{"detail": err.Error()})
 		return

internal/admin/handler_config.go

@@ -5,7 +5,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
-	"sort"
 	"strings"
 
 	"github.com/go-chi/chi/v5"
@@ -204,38 +203,191 @@ func (h *Handler) batchImport(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *Handler) exportConfig(w http.ResponseWriter, _ *http.Request) {
+	h.configExport(w, nil)
+}
+
+func (h *Handler) configExport(w http.ResponseWriter, _ *http.Request) {
+	snap := h.Store.Snapshot()
 	jsonStr, b64, err := h.Store.ExportJSONAndBase64()
 	if err != nil {
 		writeJSON(w, http.StatusInternalServerError, map[string]any{"detail": err.Error()})
 		return
 	}
-	writeJSON(w, http.StatusOK, map[string]any{"json": jsonStr, "base64": b64})
+	writeJSON(w, http.StatusOK, map[string]any{
+		"success": true,
+		"config":  snap,
+		"json":    jsonStr,
+		"base64":  b64,
+	})
+}
+
+func (h *Handler) configImport(w http.ResponseWriter, r *http.Request) {
+	var req map[string]any
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": "invalid json"})
+		return
+	}
+
+	mode := strings.TrimSpace(strings.ToLower(r.URL.Query().Get("mode")))
+	if mode == "" {
+		mode = strings.TrimSpace(strings.ToLower(fieldString(req, "mode")))
+	}
+	if mode == "" {
+		mode = "merge"
+	}
+	if mode != "merge" && mode != "replace" {
+		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": "mode must be merge or replace"})
+		return
+	}
+
+	payload := req
+	if raw, ok := req["config"].(map[string]any); ok && len(raw) > 0 {
+		payload = raw
+	}
+	rawJSON, err := json.Marshal(payload)
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": "invalid config payload"})
+		return
+	}
+	var incoming config.Config
+	if err := json.Unmarshal(rawJSON, &incoming); err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": err.Error()})
+		return
+	}
+
+	importedKeys, importedAccounts := 0, 0
+	err = h.Store.Update(func(c *config.Config) error {
+		next := c.Clone()
+		if mode == "replace" {
+			next = incoming.Clone()
+			next.VercelSyncHash = c.VercelSyncHash
+			next.VercelSyncTime = c.VercelSyncTime
+			importedKeys = len(next.Keys)
+			importedAccounts = len(next.Accounts)
+		} else {
+			existingKeys := map[string]struct{}{}
+			for _, k := range next.Keys {
+				existingKeys[k] = struct{}{}
+			}
+			for _, k := range incoming.Keys {
+				key := strings.TrimSpace(k)
+				if key == "" {
+					continue
+				}
+				if _, ok := existingKeys[key]; ok {
+					continue
+				}
+				existingKeys[key] = struct{}{}
+				next.Keys = append(next.Keys, key)
+				importedKeys++
+			}
+
+			existingAccounts := map[string]struct{}{}
+			for _, acc := range next.Accounts {
+				existingAccounts[acc.Identifier()] = struct{}{}
+			}
+			for _, acc := range incoming.Accounts {
+				id := acc.Identifier()
+				if id == "" {
+					continue
+				}
+				if _, ok := existingAccounts[id]; ok {
+					continue
+				}
+				existingAccounts[id] = struct{}{}
+				next.Accounts = append(next.Accounts, acc)
+				importedAccounts++
+			}
+
+			if len(incoming.ClaudeMapping) > 0 {
+				if next.ClaudeMapping == nil {
+					next.ClaudeMapping = map[string]string{}
+				}
+				for k, v := range incoming.ClaudeMapping {
+					next.ClaudeMapping[k] = v
+				}
+			}
+			if len(incoming.ClaudeModelMap) > 0 {
+				if next.ClaudeModelMap == nil {
+					next.ClaudeModelMap = map[string]string{}
+				}
+				for k, v := range incoming.ClaudeModelMap {
+					next.ClaudeModelMap[k] = v
+				}
+			}
+
+			if len(incoming.ModelAliases) > 0 {
+				if next.ModelAliases == nil {
+					next.ModelAliases = map[string]string{}
+				}
+				for k, v := range incoming.ModelAliases {
+					next.ModelAliases[k] = v
+				}
+			}
+			if strings.TrimSpace(incoming.Toolcall.Mode) != "" {
+				next.Toolcall.Mode = incoming.Toolcall.Mode
+			}
+			if strings.TrimSpace(incoming.Toolcall.EarlyEmitConfidence) != "" {
+				next.Toolcall.EarlyEmitConfidence = incoming.Toolcall.EarlyEmitConfidence
+			}
+			if incoming.Responses.StoreTTLSeconds > 0 {
+				next.Responses.StoreTTLSeconds = incoming.Responses.StoreTTLSeconds
+			}
+			if strings.TrimSpace(incoming.Embeddings.Provider) != "" {
+				next.Embeddings.Provider = incoming.Embeddings.Provider
+			}
+			if strings.TrimSpace(incoming.Admin.PasswordHash) != "" {
+				next.Admin.PasswordHash = incoming.Admin.PasswordHash
+			}
+			if incoming.Admin.JWTExpireHours > 0 {
+				next.Admin.JWTExpireHours = incoming.Admin.JWTExpireHours
+			}
+			if incoming.Admin.JWTValidAfterUnix > 0 {
+				next.Admin.JWTValidAfterUnix = incoming.Admin.JWTValidAfterUnix
+			}
+			if incoming.Runtime.AccountMaxInflight > 0 {
+				next.Runtime.AccountMaxInflight = incoming.Runtime.AccountMaxInflight
+			}
+			if incoming.Runtime.AccountMaxQueue > 0 {
+				next.Runtime.AccountMaxQueue = incoming.Runtime.AccountMaxQueue
+			}
+			if incoming.Runtime.GlobalMaxInflight > 0 {
+				next.Runtime.GlobalMaxInflight = incoming.Runtime.GlobalMaxInflight
+			}
+		}
+
+		normalizeSettingsConfig(&next)
+		if err := validateSettingsConfig(next); err != nil {
+			return newRequestError(err.Error())
+		}
+
+		*c = next
+		return nil
+	})
+	if err != nil {
+		if detail, ok := requestErrorDetail(err); ok {
+			writeJSON(w, http.StatusBadRequest, map[string]any{"detail": detail})
+			return
+		}
+		writeJSON(w, http.StatusInternalServerError, map[string]any{"detail": err.Error()})
+		return
+	}
+
+	h.Pool.Reset()
+	writeJSON(w, http.StatusOK, map[string]any{
+		"success":           true,
+		"mode":              mode,
+		"imported_keys":     importedKeys,
+		"imported_accounts": importedAccounts,
+		"message":           "config imported",
+	})
 }
 
 func (h *Handler) computeSyncHash() string {
-	snap := h.Store.Snapshot()
-	syncable := map[string]any{"keys": snap.Keys, "accounts": []map[string]any{}}
-	accounts := make([]map[string]any, 0, len(snap.Accounts))
-	for _, a := range snap.Accounts {
-		m := map[string]any{}
-		if a.Email != "" {
-			m["email"] = a.Email
-		}
-		if a.Mobile != "" {
-			m["mobile"] = a.Mobile
-		}
-		if a.Password != "" {
-			m["password"] = a.Password
-		}
-		accounts = append(accounts, m)
-	}
-	sort.Slice(accounts, func(i, j int) bool {
-		ai := fmt.Sprintf("%v%v", accounts[i]["email"], accounts[i]["mobile"])
-		aj := fmt.Sprintf("%v%v", accounts[j]["email"], accounts[j]["mobile"])
-		return ai < aj
-	})
-	syncable["accounts"] = accounts
-	b, _ := json.Marshal(syncable)
+	snap := h.Store.Snapshot().Clone()
+	snap.VercelSyncHash = ""
+	snap.VercelSyncTime = 0
+	b, _ := json.Marshal(snap)
 	sum := md5.Sum(b)
 	return fmt.Sprintf("%x", sum)
 }

internal/admin/handler_settings.go

@@ -0,0 +1,321 @@
+package admin
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	authn "ds2api/internal/auth"
+	"ds2api/internal/config"
+)
+
+func (h *Handler) getSettings(w http.ResponseWriter, _ *http.Request) {
+	snap := h.Store.Snapshot()
+	recommended := defaultRuntimeRecommended(len(snap.Accounts), h.Store.RuntimeAccountMaxInflight())
+	needsSync := config.IsVercel() && snap.VercelSyncHash != "" && snap.VercelSyncHash != h.computeSyncHash()
+	writeJSON(w, http.StatusOK, map[string]any{
+		"success": true,
+		"admin": map[string]any{
+			"has_password_hash":        strings.TrimSpace(snap.Admin.PasswordHash) != "",
+			"jwt_expire_hours":         h.Store.AdminJWTExpireHours(),
+			"jwt_valid_after_unix":     snap.Admin.JWTValidAfterUnix,
+			"default_password_warning": authn.UsingDefaultAdminKey(h.Store),
+		},
+		"runtime": map[string]any{
+			"account_max_inflight": h.Store.RuntimeAccountMaxInflight(),
+			"account_max_queue":    h.Store.RuntimeAccountMaxQueue(recommended),
+			"global_max_inflight":  h.Store.RuntimeGlobalMaxInflight(recommended),
+		},
+		"toolcall":          snap.Toolcall,
+		"responses":         snap.Responses,
+		"embeddings":        snap.Embeddings,
+		"claude_mapping":    settingsClaudeMapping(snap),
+		"model_aliases":     snap.ModelAliases,
+		"env_backed":        h.Store.IsEnvBacked(),
+		"needs_vercel_sync": needsSync,
+	})
+}
+
+func (h *Handler) updateSettings(w http.ResponseWriter, r *http.Request) {
+	var req map[string]any
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": "invalid json"})
+		return
+	}
+
+	adminCfg, runtimeCfg, toolcallCfg, responsesCfg, embeddingsCfg, claudeMap, aliasMap, err := parseSettingsUpdateRequest(req)
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": err.Error()})
+		return
+	}
+	if runtimeCfg != nil {
+		if err := validateMergedRuntimeSettings(h.Store.Snapshot().Runtime, runtimeCfg); err != nil {
+			writeJSON(w, http.StatusBadRequest, map[string]any{"detail": err.Error()})
+			return
+		}
+	}
+
+	if err := h.Store.Update(func(c *config.Config) error {
+		if adminCfg != nil {
+			if adminCfg.JWTExpireHours > 0 {
+				c.Admin.JWTExpireHours = adminCfg.JWTExpireHours
+			}
+		}
+		if runtimeCfg != nil {
+			if runtimeCfg.AccountMaxInflight > 0 {
+				c.Runtime.AccountMaxInflight = runtimeCfg.AccountMaxInflight
+			}
+			if runtimeCfg.AccountMaxQueue > 0 {
+				c.Runtime.AccountMaxQueue = runtimeCfg.AccountMaxQueue
+			}
+			if runtimeCfg.GlobalMaxInflight > 0 {
+				c.Runtime.GlobalMaxInflight = runtimeCfg.GlobalMaxInflight
+			}
+		}
+		if toolcallCfg != nil {
+			if strings.TrimSpace(toolcallCfg.Mode) != "" {
+				c.Toolcall.Mode = strings.TrimSpace(toolcallCfg.Mode)
+			}
+			if strings.TrimSpace(toolcallCfg.EarlyEmitConfidence) != "" {
+				c.Toolcall.EarlyEmitConfidence = strings.TrimSpace(toolcallCfg.EarlyEmitConfidence)
+			}
+		}
+		if responsesCfg != nil && responsesCfg.StoreTTLSeconds > 0 {
+			c.Responses.StoreTTLSeconds = responsesCfg.StoreTTLSeconds
+		}
+		if embeddingsCfg != nil && strings.TrimSpace(embeddingsCfg.Provider) != "" {
+			c.Embeddings.Provider = strings.TrimSpace(embeddingsCfg.Provider)
+		}
+		if claudeMap != nil {
+			c.ClaudeMapping = claudeMap
+			c.ClaudeModelMap = nil
+		}
+		if aliasMap != nil {
+			c.ModelAliases = aliasMap
+		}
+		return nil
+	}); err != nil {
+		writeJSON(w, http.StatusInternalServerError, map[string]any{"detail": err.Error()})
+		return
+	}
+
+	h.applyRuntimeSettings()
+	needsSync := config.IsVercel() || h.Store.IsEnvBacked()
+	writeJSON(w, http.StatusOK, map[string]any{
+		"success":             true,
+		"message":             "settings updated and hot reloaded",
+		"env_backed":          h.Store.IsEnvBacked(),
+		"needs_vercel_sync":   needsSync,
+		"manual_sync_message": "配置已保存。Vercel 部署请在 Vercel Sync 页面手动同步。",
+	})
+}
+
+func validateMergedRuntimeSettings(current config.RuntimeConfig, incoming *config.RuntimeConfig) error {
+	merged := current
+	if incoming != nil {
+		if incoming.AccountMaxInflight > 0 {
+			merged.AccountMaxInflight = incoming.AccountMaxInflight
+		}
+		if incoming.AccountMaxQueue > 0 {
+			merged.AccountMaxQueue = incoming.AccountMaxQueue
+		}
+		if incoming.GlobalMaxInflight > 0 {
+			merged.GlobalMaxInflight = incoming.GlobalMaxInflight
+		}
+	}
+	return validateRuntimeSettings(merged)
+}
+
+func (h *Handler) updateSettingsPassword(w http.ResponseWriter, r *http.Request) {
+	var req map[string]any
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": "invalid json"})
+		return
+	}
+	newPassword := strings.TrimSpace(fieldString(req, "new_password"))
+	if newPassword == "" {
+		newPassword = strings.TrimSpace(fieldString(req, "password"))
+	}
+	if len(newPassword) < 4 {
+		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": "new password must be at least 4 characters"})
+		return
+	}
+
+	now := time.Now().Unix()
+	hash := authn.HashAdminPassword(newPassword)
+	if err := h.Store.Update(func(c *config.Config) error {
+		c.Admin.PasswordHash = hash
+		c.Admin.JWTValidAfterUnix = now
+		return nil
+	}); err != nil {
+		writeJSON(w, http.StatusInternalServerError, map[string]any{"detail": err.Error()})
+		return
+	}
+
+	writeJSON(w, http.StatusOK, map[string]any{
+		"success":              true,
+		"message":              "password updated",
+		"force_relogin":        true,
+		"jwt_valid_after_unix": now,
+	})
+}
+
+func (h *Handler) applyRuntimeSettings() {
+	if h == nil || h.Store == nil || h.Pool == nil {
+		return
+	}
+	accountCount := len(h.Store.Accounts())
+	maxPer := h.Store.RuntimeAccountMaxInflight()
+	recommended := defaultRuntimeRecommended(accountCount, maxPer)
+	maxQueue := h.Store.RuntimeAccountMaxQueue(recommended)
+	global := h.Store.RuntimeGlobalMaxInflight(recommended)
+	h.Pool.ApplyRuntimeLimits(maxPer, maxQueue, global)
+}
+
+func defaultRuntimeRecommended(accountCount, maxPer int) int {
+	if maxPer <= 0 {
+		maxPer = 1
+	}
+	if accountCount <= 0 {
+		return maxPer
+	}
+	return accountCount * maxPer
+}
+
+func settingsClaudeMapping(c config.Config) map[string]string {
+	if len(c.ClaudeMapping) > 0 {
+		return c.ClaudeMapping
+	}
+	if len(c.ClaudeModelMap) > 0 {
+		return c.ClaudeModelMap
+	}
+	return map[string]string{"fast": "deepseek-chat", "slow": "deepseek-reasoner"}
+}
+
+func parseSettingsUpdateRequest(req map[string]any) (*config.AdminConfig, *config.RuntimeConfig, *config.ToolcallConfig, *config.ResponsesConfig, *config.EmbeddingsConfig, map[string]string, map[string]string, error) {
+	var (
+		adminCfg    *config.AdminConfig
+		runtimeCfg  *config.RuntimeConfig
+		toolcallCfg *config.ToolcallConfig
+		respCfg     *config.ResponsesConfig
+		embCfg      *config.EmbeddingsConfig
+		claudeMap   map[string]string
+		aliasMap    map[string]string
+	)
+
+	if raw, ok := req["admin"].(map[string]any); ok {
+		cfg := &config.AdminConfig{}
+		if v, exists := raw["jwt_expire_hours"]; exists {
+			n := intFrom(v)
+			if n < 1 || n > 720 {
+				return nil, nil, nil, nil, nil, nil, nil, fmt.Errorf("admin.jwt_expire_hours must be between 1 and 720")
+			}
+			cfg.JWTExpireHours = n
+		}
+		adminCfg = cfg
+	}
+
+	if raw, ok := req["runtime"].(map[string]any); ok {
+		cfg := &config.RuntimeConfig{}
+		if v, exists := raw["account_max_inflight"]; exists {
+			n := intFrom(v)
+			if n < 1 || n > 256 {
+				return nil, nil, nil, nil, nil, nil, nil, fmt.Errorf("runtime.account_max_inflight must be between 1 and 256")
+			}
+			cfg.AccountMaxInflight = n
+		}
+		if v, exists := raw["account_max_queue"]; exists {
+			n := intFrom(v)
+			if n < 1 || n > 200000 {
+				return nil, nil, nil, nil, nil, nil, nil, fmt.Errorf("runtime.account_max_queue must be between 1 and 200000")
+			}
+			cfg.AccountMaxQueue = n
+		}
+		if v, exists := raw["global_max_inflight"]; exists {
+			n := intFrom(v)
+			if n < 1 || n > 200000 {
+				return nil, nil, nil, nil, nil, nil, nil, fmt.Errorf("runtime.global_max_inflight must be between 1 and 200000")
+			}
+			cfg.GlobalMaxInflight = n
+		}
+		if cfg.AccountMaxInflight > 0 && cfg.GlobalMaxInflight > 0 && cfg.GlobalMaxInflight < cfg.AccountMaxInflight {
+			return nil, nil, nil, nil, nil, nil, nil, fmt.Errorf("runtime.global_max_inflight must be >= runtime.account_max_inflight")
+		}
+		runtimeCfg = cfg
+	}
+
+	if raw, ok := req["toolcall"].(map[string]any); ok {
+		cfg := &config.ToolcallConfig{}
+		if v, exists := raw["mode"]; exists {
+			mode := strings.ToLower(strings.TrimSpace(fmt.Sprintf("%v", v)))
+			switch mode {
+			case "feature_match", "off":
+				cfg.Mode = mode
+			default:
+				return nil, nil, nil, nil, nil, nil, nil, fmt.Errorf("toolcall.mode must be feature_match or off")
+			}
+		}
+		if v, exists := raw["early_emit_confidence"]; exists {
+			level := strings.ToLower(strings.TrimSpace(fmt.Sprintf("%v", v)))
+			switch level {
+			case "high", "low", "off":
+				cfg.EarlyEmitConfidence = level
+			default:
+				return nil, nil, nil, nil, nil, nil, nil, fmt.Errorf("toolcall.early_emit_confidence must be high, low or off")
+			}
+		}
+		toolcallCfg = cfg
+	}
+
+	if raw, ok := req["responses"].(map[string]any); ok {
+		cfg := &config.ResponsesConfig{}
+		if v, exists := raw["store_ttl_seconds"]; exists {
+			n := intFrom(v)
+			if n < 30 || n > 86400 {
+				return nil, nil, nil, nil, nil, nil, nil, fmt.Errorf("responses.store_ttl_seconds must be between 30 and 86400")
+			}
+			cfg.StoreTTLSeconds = n
+		}
+		respCfg = cfg
+	}
+
+	if raw, ok := req["embeddings"].(map[string]any); ok {
+		cfg := &config.EmbeddingsConfig{}
+		if v, exists := raw["provider"]; exists {
+			p := strings.TrimSpace(fmt.Sprintf("%v", v))
+			if p == "" {
+				return nil, nil, nil, nil, nil, nil, nil, fmt.Errorf("embeddings.provider cannot be empty")
+			}
+			cfg.Provider = p
+		}
+		embCfg = cfg
+	}
+
+	if raw, ok := req["claude_mapping"].(map[string]any); ok {
+		claudeMap = map[string]string{}
+		for k, v := range raw {
+			key := strings.TrimSpace(k)
+			val := strings.TrimSpace(fmt.Sprintf("%v", v))
+			if key == "" || val == "" {
+				continue
+			}
+			claudeMap[key] = val
+		}
+	}
+
+	if raw, ok := req["model_aliases"].(map[string]any); ok {
+		aliasMap = map[string]string{}
+		for k, v := range raw {
+			key := strings.TrimSpace(k)
+			val := strings.TrimSpace(fmt.Sprintf("%v", v))
+			if key == "" || val == "" {
+				continue
+			}
+			aliasMap[key] = val
+		}
+	}
+
+	return adminCfg, runtimeCfg, toolcallCfg, respCfg, embCfg, claudeMap, aliasMap, nil
+}

internal/admin/handler_settings_test.go

@@ -0,0 +1,267 @@
+package admin
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	authn "ds2api/internal/auth"
+)
+
+func TestGetSettingsDefaultPasswordWarning(t *testing.T) {
+	t.Setenv("DS2API_ADMIN_KEY", "")
+	h := newAdminTestHandler(t, `{"keys":["k1"]}`)
+	req := httptest.NewRequest(http.MethodGet, "/admin/settings", nil)
+	rec := httptest.NewRecorder()
+	h.getSettings(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status=%d body=%s", rec.Code, rec.Body.String())
+	}
+	var body map[string]any
+	_ = json.Unmarshal(rec.Body.Bytes(), &body)
+	admin, _ := body["admin"].(map[string]any)
+	warn, _ := admin["default_password_warning"].(bool)
+	if !warn {
+		t.Fatalf("expected default password warning true, body=%v", body)
+	}
+}
+
+func TestUpdateSettingsValidation(t *testing.T) {
+	h := newAdminTestHandler(t, `{"keys":["k1"]}`)
+	payload := map[string]any{
+		"runtime": map[string]any{
+			"account_max_inflight": 0,
+		},
+	}
+	b, _ := json.Marshal(payload)
+	req := httptest.NewRequest(http.MethodPut, "/admin/settings", bytes.NewReader(b))
+	rec := httptest.NewRecorder()
+	h.updateSettings(rec, req)
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400, got %d body=%s", rec.Code, rec.Body.String())
+	}
+}
+
+func TestUpdateSettingsValidationWithMergedRuntimeSnapshot(t *testing.T) {
+	h := newAdminTestHandler(t, `{
+		"keys":["k1"],
+		"runtime":{
+			"account_max_inflight":8,
+			"global_max_inflight":8
+		}
+	}`)
+	payload := map[string]any{
+		"runtime": map[string]any{
+			"account_max_inflight": 16,
+		},
+	}
+	b, _ := json.Marshal(payload)
+	req := httptest.NewRequest(http.MethodPut, "/admin/settings", bytes.NewReader(b))
+	rec := httptest.NewRecorder()
+	h.updateSettings(rec, req)
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400, got %d body=%s", rec.Code, rec.Body.String())
+	}
+	if !bytes.Contains(rec.Body.Bytes(), []byte("runtime.global_max_inflight")) {
+		t.Fatalf("expected merged runtime validation detail, got %s", rec.Body.String())
+	}
+}
+
+func TestUpdateSettingsWithoutRuntimeSkipsMergedRuntimeValidation(t *testing.T) {
+	h := newAdminTestHandler(t, `{
+		"keys":["k1"],
+		"runtime":{
+			"account_max_inflight":8,
+			"global_max_inflight":4
+		}
+	}`)
+	payload := map[string]any{
+		"responses": map[string]any{
+			"store_ttl_seconds": 600,
+		},
+	}
+	b, _ := json.Marshal(payload)
+	req := httptest.NewRequest(http.MethodPut, "/admin/settings", bytes.NewReader(b))
+	rec := httptest.NewRecorder()
+	h.updateSettings(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d body=%s", rec.Code, rec.Body.String())
+	}
+	if got := h.Store.Snapshot().Responses.StoreTTLSeconds; got != 600 {
+		t.Fatalf("store_ttl_seconds=%d want=600", got)
+	}
+}
+
+func TestUpdateSettingsHotReloadRuntime(t *testing.T) {
+	h := newAdminTestHandler(t, `{
+		"keys":["k1"],
+		"accounts":[{"email":"a@test.com","token":"t1"},{"email":"b@test.com","token":"t2"}]
+	}`)
+
+	payload := map[string]any{
+		"runtime": map[string]any{
+			"account_max_inflight": 3,
+			"account_max_queue":    20,
+			"global_max_inflight":  5,
+		},
+	}
+	b, _ := json.Marshal(payload)
+	req := httptest.NewRequest(http.MethodPut, "/admin/settings", bytes.NewReader(b))
+	rec := httptest.NewRecorder()
+	h.updateSettings(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status=%d body=%s", rec.Code, rec.Body.String())
+	}
+	status := h.Pool.Status()
+	if got := intFrom(status["max_inflight_per_account"]); got != 3 {
+		t.Fatalf("max_inflight_per_account=%d want=3", got)
+	}
+	if got := intFrom(status["max_queue_size"]); got != 20 {
+		t.Fatalf("max_queue_size=%d want=20", got)
+	}
+	if got := intFrom(status["global_max_inflight"]); got != 5 {
+		t.Fatalf("global_max_inflight=%d want=5", got)
+	}
+}
+
+func TestUpdateSettingsPasswordInvalidatesOldJWT(t *testing.T) {
+	hash := authn.HashAdminPassword("old-password")
+	h := newAdminTestHandler(t, `{"admin":{"password_hash":"`+hash+`"}}`)
+
+	token, err := authn.CreateJWTWithStore(1, h.Store)
+	if err != nil {
+		t.Fatalf("create jwt failed: %v", err)
+	}
+	if _, err := authn.VerifyJWTWithStore(token, h.Store); err != nil {
+		t.Fatalf("verify before update failed: %v", err)
+	}
+
+	body := map[string]any{"new_password": "new-password"}
+	b, _ := json.Marshal(body)
+	req := httptest.NewRequest(http.MethodPost, "/admin/settings/password", bytes.NewReader(b))
+	rec := httptest.NewRecorder()
+	h.updateSettingsPassword(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status=%d body=%s", rec.Code, rec.Body.String())
+	}
+
+	if _, err := authn.VerifyJWTWithStore(token, h.Store); err == nil {
+		t.Fatal("expected old token to be invalid after password update")
+	}
+	if !authn.VerifyAdminCredential("new-password", h.Store) {
+		t.Fatal("expected new password credential to be accepted")
+	}
+}
+
+func TestConfigImportMergeAndReplace(t *testing.T) {
+	h := newAdminTestHandler(t, `{
+		"keys":["k1"],
+		"accounts":[{"email":"a@test.com","password":"p1"}]
+	}`)
+
+	merge := map[string]any{
+		"mode": "merge",
+		"config": map[string]any{
+			"keys": []any{"k1", "k2"},
+			"accounts": []any{
+				map[string]any{"email": "a@test.com", "password": "p1"},
+				map[string]any{"email": "b@test.com", "password": "p2"},
+			},
+		},
+	}
+	mergeBytes, _ := json.Marshal(merge)
+	mergeReq := httptest.NewRequest(http.MethodPost, "/admin/config/import?mode=merge", bytes.NewReader(mergeBytes))
+	mergeRec := httptest.NewRecorder()
+	h.configImport(mergeRec, mergeReq)
+	if mergeRec.Code != http.StatusOK {
+		t.Fatalf("merge status=%d body=%s", mergeRec.Code, mergeRec.Body.String())
+	}
+	if got := len(h.Store.Keys()); got != 2 {
+		t.Fatalf("keys after merge=%d want=2", got)
+	}
+	if got := len(h.Store.Accounts()); got != 2 {
+		t.Fatalf("accounts after merge=%d want=2", got)
+	}
+
+	replace := map[string]any{
+		"mode": "replace",
+		"config": map[string]any{
+			"keys": []any{"k9"},
+		},
+	}
+	replaceBytes, _ := json.Marshal(replace)
+	replaceReq := httptest.NewRequest(http.MethodPost, "/admin/config/import?mode=replace", bytes.NewReader(replaceBytes))
+	replaceRec := httptest.NewRecorder()
+	h.configImport(replaceRec, replaceReq)
+	if replaceRec.Code != http.StatusOK {
+		t.Fatalf("replace status=%d body=%s", replaceRec.Code, replaceRec.Body.String())
+	}
+	keys := h.Store.Keys()
+	if len(keys) != 1 || keys[0] != "k9" {
+		t.Fatalf("unexpected keys after replace: %#v", keys)
+	}
+	if got := len(h.Store.Accounts()); got != 0 {
+		t.Fatalf("accounts after replace=%d want=0", got)
+	}
+}
+
+func TestConfigImportRejectsInvalidRuntimeBounds(t *testing.T) {
+	h := newAdminTestHandler(t, `{"keys":["k1"]}`)
+	payload := map[string]any{
+		"mode": "replace",
+		"config": map[string]any{
+			"keys": []any{"k2"},
+			"runtime": map[string]any{
+				"account_max_inflight": 300,
+			},
+		},
+	}
+	b, _ := json.Marshal(payload)
+	req := httptest.NewRequest(http.MethodPost, "/admin/config/import?mode=replace", bytes.NewReader(b))
+	rec := httptest.NewRecorder()
+	h.configImport(rec, req)
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400, got %d body=%s", rec.Code, rec.Body.String())
+	}
+	if !bytes.Contains(rec.Body.Bytes(), []byte("runtime.account_max_inflight")) {
+		t.Fatalf("expected runtime bound detail, got %s", rec.Body.String())
+	}
+	keys := h.Store.Keys()
+	if len(keys) != 1 || keys[0] != "k1" {
+		t.Fatalf("store should remain unchanged, keys=%v", keys)
+	}
+}
+
+func TestConfigImportRejectsMergedRuntimeConflict(t *testing.T) {
+	h := newAdminTestHandler(t, `{
+		"keys":["k1"],
+		"runtime":{
+			"account_max_inflight":8,
+			"global_max_inflight":8
+		}
+	}`)
+	payload := map[string]any{
+		"mode": "merge",
+		"config": map[string]any{
+			"runtime": map[string]any{
+				"account_max_inflight": 16,
+			},
+		},
+	}
+	b, _ := json.Marshal(payload)
+	req := httptest.NewRequest(http.MethodPost, "/admin/config/import?mode=merge", bytes.NewReader(b))
+	rec := httptest.NewRecorder()
+	h.configImport(rec, req)
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("expected 400, got %d body=%s", rec.Code, rec.Body.String())
+	}
+	if !bytes.Contains(rec.Body.Bytes(), []byte("runtime.global_max_inflight")) {
+		t.Fatalf("expected merged runtime validation detail, got %s", rec.Body.String())
+	}
+	snap := h.Store.Snapshot()
+	if snap.Runtime.AccountMaxInflight != 8 || snap.Runtime.GlobalMaxInflight != 8 {
+		t.Fatalf("runtime should remain unchanged, runtime=%+v", snap.Runtime)
+	}
+}

internal/admin/handler_vercel.go

@@ -3,8 +3,8 @@ package admin
 import (
 	"bytes"
 	"context"
-	"encoding/base64"
 	"encoding/json"
+	"fmt"
 	"io"
 	"net/http"
 	"net/url"
@@ -19,6 +19,62 @@ func (h *Handler) syncVercel(w http.ResponseWriter, r *http.Request) {
 		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": "invalid json"})
 		return
 	}
+	opts, err := parseVercelSyncOptions(req)
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": err.Error()})
+		return
+	}
+	validated, failed := h.validateAccountsForVercelSync(r.Context(), opts.AutoValidate)
+	_, cfgB64, err := h.Store.ExportJSONAndBase64()
+	if err != nil {
+		writeJSON(w, http.StatusInternalServerError, map[string]any{"detail": err.Error()})
+		return
+	}
+	client := &http.Client{Timeout: 30 * time.Second}
+	params := buildVercelParams(opts.TeamID)
+	headers := map[string]string{"Authorization": "Bearer " + opts.VercelToken}
+
+	envResp, status, err := vercelRequest(r.Context(), client, http.MethodGet, "https://api.vercel.com/v9/projects/"+opts.ProjectID+"/env", params, headers, nil)
+	if err != nil || status != http.StatusOK {
+		writeJSON(w, statusOr(status, http.StatusInternalServerError), map[string]any{"detail": "获取环境变量失败"})
+		return
+	}
+	envs, _ := envResp["envs"].([]any)
+	status, err = upsertVercelEnv(r.Context(), client, opts.ProjectID, params, headers, envs, "DS2API_CONFIG_JSON", cfgB64)
+	if err != nil || (status != http.StatusOK && status != http.StatusCreated) {
+		writeJSON(w, statusOr(status, http.StatusInternalServerError), map[string]any{"detail": "更新环境变量失败"})
+		return
+	}
+	savedCreds := h.saveVercelProjectCredentials(r.Context(), client, opts, params, headers, envs)
+	manual, deployURL := triggerVercelDeployment(r.Context(), client, opts.ProjectID, params, headers)
+	_ = h.Store.SetVercelSync(h.computeSyncHash(), time.Now().Unix())
+	result := map[string]any{"success": true, "validated_accounts": validated}
+	if manual {
+		result["message"] = "配置已同步到 Vercel，请手动触发重新部署"
+		result["manual_deploy_required"] = true
+	} else {
+		result["message"] = "配置已同步，正在重新部署..."
+		result["deployment_url"] = deployURL
+	}
+	if len(failed) > 0 {
+		result["failed_accounts"] = failed
+	}
+	if len(savedCreds) > 0 {
+		result["saved_credentials"] = savedCreds
+	}
+	writeJSON(w, http.StatusOK, result)
+}
+
+type vercelSyncOptions struct {
+	VercelToken  string
+	ProjectID    string
+	TeamID       string
+	AutoValidate bool
+	SaveCreds    bool
+	UsePreconfig bool
+}
+
+func parseVercelSyncOptions(req map[string]any) (vercelSyncOptions, error) {
 	vercelToken, _ := req["vercel_token"].(string)
 	projectID, _ := req["project_id"].(string)
 	teamID, _ := req["team_id"].(string)
@@ -40,108 +96,117 @@ func (h *Handler) syncVercel(w http.ResponseWriter, r *http.Request) {
 	if strings.TrimSpace(teamID) == "" {
 		teamID = strings.TrimSpace(os.Getenv("VERCEL_TEAM_ID"))
 	}
+	vercelToken = strings.TrimSpace(vercelToken)
+	projectID = strings.TrimSpace(projectID)
+	teamID = strings.TrimSpace(teamID)
 	if vercelToken == "" || projectID == "" {
-		writeJSON(w, http.StatusBadRequest, map[string]any{"detail": "需要 Vercel Token 和 Project ID"})
-		return
+		return vercelSyncOptions{}, fmt.Errorf("需要 Vercel Token 和 Project ID")
+	}
+	return vercelSyncOptions{
+		VercelToken:  vercelToken,
+		ProjectID:    projectID,
+		TeamID:       teamID,
+		AutoValidate: autoValidate,
+		SaveCreds:    saveCreds,
+		UsePreconfig: usePreconfig,
+	}, nil
+}
+
+func buildVercelParams(teamID string) url.Values {
+	params := url.Values{}
+	if strings.TrimSpace(teamID) != "" {
+		params.Set("teamId", strings.TrimSpace(teamID))
+	}
+	return params
+}
+
+func (h *Handler) validateAccountsForVercelSync(ctx context.Context, enabled bool) (int, []string) {
+	if !enabled {
+		return 0, nil
 	}
 	validated, failed := 0, []string{}
-	if autoValidate {
-		for _, acc := range h.Store.Snapshot().Accounts {
-			if strings.TrimSpace(acc.Token) != "" {
-				continue
-			}
-			token, err := h.DS.Login(r.Context(), acc)
-			if err != nil {
-				failed = append(failed, acc.Identifier())
-			} else {
-				validated++
-				_ = h.Store.UpdateAccountToken(acc.Identifier(), token)
-			}
-			time.Sleep(500 * time.Millisecond)
+	for _, acc := range h.Store.Snapshot().Accounts {
+		if strings.TrimSpace(acc.Token) != "" {
+			continue
 		}
+		token, err := h.DS.Login(ctx, acc)
+		if err != nil {
+			failed = append(failed, acc.Identifier())
+		} else {
+			validated++
+			_ = h.Store.UpdateAccountToken(acc.Identifier(), token)
+		}
+		time.Sleep(500 * time.Millisecond)
 	}
+	return validated, failed
+}
 
-	cfgJSON, _, err := h.Store.ExportJSONAndBase64()
-	if err != nil {
-		writeJSON(w, http.StatusInternalServerError, map[string]any{"detail": err.Error()})
-		return
+func upsertVercelEnv(ctx context.Context, client *http.Client, projectID string, params url.Values, headers map[string]string, envs []any, key, value string) (int, error) {
+	existingID := findEnvID(envs, key)
+	if existingID != "" {
+		_, status, err := vercelRequest(ctx, client, http.MethodPatch, "https://api.vercel.com/v9/projects/"+projectID+"/env/"+existingID, params, headers, map[string]any{"value": value})
+		return status, err
 	}
-	cfgB64 := base64.StdEncoding.EncodeToString([]byte(cfgJSON))
-	client := &http.Client{Timeout: 30 * time.Second}
-	params := url.Values{}
-	if teamID != "" {
-		params.Set("teamId", teamID)
+	_, status, err := vercelRequest(ctx, client, http.MethodPost, "https://api.vercel.com/v10/projects/"+projectID+"/env", params, headers, map[string]any{
+		"key":    key,
+		"value":  value,
+		"type":   "encrypted",
+		"target": []string{"production", "preview"},
+	})
+	return status, err
+}
+
+func (h *Handler) saveVercelProjectCredentials(ctx context.Context, client *http.Client, opts vercelSyncOptions, params url.Values, headers map[string]string, envs []any) []string {
+	if !opts.SaveCreds || opts.UsePreconfig {
+		return nil
 	}
-	headers := map[string]string{"Authorization": "Bearer " + vercelToken}
-	envResp, status, err := vercelRequest(r.Context(), client, http.MethodGet, "https://api.vercel.com/v9/projects/"+projectID+"/env", params, headers, nil)
-	if err != nil || status != http.StatusOK {
-		writeJSON(w, statusOr(status, http.StatusInternalServerError), map[string]any{"detail": "获取环境变量失败"})
-		return
+	saved := []string{}
+	creds := [][2]string{{"VERCEL_TOKEN", opts.VercelToken}, {"VERCEL_PROJECT_ID", opts.ProjectID}}
+	if opts.TeamID != "" {
+		creds = append(creds, [2]string{"VERCEL_TEAM_ID", opts.TeamID})
 	}
-	envs, _ := envResp["envs"].([]any)
-	existingEnvID := findEnvID(envs, "DS2API_CONFIG_JSON")
-	if existingEnvID != "" {
-		_, status, err = vercelRequest(r.Context(), client, http.MethodPatch, "https://api.vercel.com/v9/projects/"+projectID+"/env/"+existingEnvID, params, headers, map[string]any{"value": cfgB64})
-	} else {
-		_, status, err = vercelRequest(r.Context(), client, http.MethodPost, "https://api.vercel.com/v10/projects/"+projectID+"/env", params, headers, map[string]any{"key": "DS2API_CONFIG_JSON", "value": cfgB64, "type": "encrypted", "target": []string{"production", "preview"}})
-	}
-	if err != nil || (status != http.StatusOK && status != http.StatusCreated) {
-		writeJSON(w, statusOr(status, http.StatusInternalServerError), map[string]any{"detail": "更新环境变量失败"})
-		return
-	}
-	savedCreds := []string{}
-	if saveCreds && !usePreconfig {
-		creds := [][2]string{{"VERCEL_TOKEN", vercelToken}, {"VERCEL_PROJECT_ID", projectID}}
-		if teamID != "" {
-			creds = append(creds, [2]string{"VERCEL_TEAM_ID", teamID})
-		}
-		for _, kv := range creds {
-			id := findEnvID(envs, kv[0])
-			if id != "" {
-				_, status, _ = vercelRequest(r.Context(), client, http.MethodPatch, "https://api.vercel.com/v9/projects/"+projectID+"/env/"+id, params, headers, map[string]any{"value": kv[1]})
-			} else {
-				_, status, _ = vercelRequest(r.Context(), client, http.MethodPost, "https://api.vercel.com/v10/projects/"+projectID+"/env", params, headers, map[string]any{"key": kv[0], "value": kv[1], "type": "encrypted", "target": []string{"production", "preview"}})
-			}
-			if status == http.StatusOK || status == http.StatusCreated {
-				savedCreds = append(savedCreds, kv[0])
-			}
+	for _, kv := range creds {
+		status, _ := upsertVercelEnv(ctx, client, opts.ProjectID, params, headers, envs, kv[0], kv[1])
+		if status == http.StatusOK || status == http.StatusCreated {
+			saved = append(saved, kv[0])
 		}
 	}
-	projectResp, status, _ := vercelRequest(r.Context(), client, http.MethodGet, "https://api.vercel.com/v9/projects/"+projectID, params, headers, nil)
-	manual := true
-	deployURL := ""
-	if status == http.StatusOK {
-		if link, ok := projectResp["link"].(map[string]any); ok {
-			if linkType, _ := link["type"].(string); linkType == "github" {
-				repoID := intFrom(link["repoId"])
-				ref, _ := link["productionBranch"].(string)
-				if ref == "" {
-					ref = "main"
-				}
-				depResp, depStatus, _ := vercelRequest(r.Context(), client, http.MethodPost, "https://api.vercel.com/v13/deployments", params, headers, map[string]any{"name": projectID, "project": projectID, "target": "production", "gitSource": map[string]any{"type": "github", "repoId": repoID, "ref": ref}})
-				if depStatus == http.StatusOK || depStatus == http.StatusCreated {
-					deployURL, _ = depResp["url"].(string)
-					manual = false
-				}
-			}
-		}
+	return saved
+}
+
+func triggerVercelDeployment(ctx context.Context, client *http.Client, projectID string, params url.Values, headers map[string]string) (bool, string) {
+	projectResp, status, _ := vercelRequest(ctx, client, http.MethodGet, "https://api.vercel.com/v9/projects/"+projectID, params, headers, nil)
+	if status != http.StatusOK {
+		return true, ""
 	}
-	_ = h.Store.SetVercelSync(h.computeSyncHash(), time.Now().Unix())
-	result := map[string]any{"success": true, "validated_accounts": validated}
-	if manual {
-		result["message"] = "配置已同步到 Vercel，请手动触发重新部署"
-		result["manual_deploy_required"] = true
-	} else {
-		result["message"] = "配置已同步，正在重新部署..."
-		result["deployment_url"] = deployURL
+	link, ok := projectResp["link"].(map[string]any)
+	if !ok {
+		return true, ""
 	}
-	if len(failed) > 0 {
-		result["failed_accounts"] = failed
+	linkType, _ := link["type"].(string)
+	if linkType != "github" {
+		return true, ""
 	}
-	if len(savedCreds) > 0 {
-		result["saved_credentials"] = savedCreds
+	repoID := intFrom(link["repoId"])
+	ref, _ := link["productionBranch"].(string)
+	if ref == "" {
+		ref = "main"
 	}
-	writeJSON(w, http.StatusOK, result)
+	depResp, depStatus, _ := vercelRequest(ctx, client, http.MethodPost, "https://api.vercel.com/v13/deployments", params, headers, map[string]any{
+		"name":    projectID,
+		"project": projectID,
+		"target":  "production",
+		"gitSource": map[string]any{
+			"type":   "github",
+			"repoId": repoID,
+			"ref":    ref,
+		},
+	})
+	if depStatus != http.StatusOK && depStatus != http.StatusCreated {
+		return true, ""
+	}
+	deployURL, _ := depResp["url"].(string)
+	return false, deployURL
 }
 
 func (h *Handler) vercelStatus(w http.ResponseWriter, _ *http.Request) {

internal/admin/helpers.go

@@ -96,7 +96,7 @@ func accountMatchesIdentifier(acc config.Account, identifier string) bool {
 	return acc.Identifier() == id
 }
 
-func findAccountByIdentifier(store *config.Store, identifier string) (config.Account, bool) {
+func findAccountByIdentifier(store ConfigStore, identifier string) (config.Account, bool) {
 	id := strings.TrimSpace(identifier)
 	if id == "" {
 		return config.Account{}, false

internal/admin/request_error.go

@@ -0,0 +1,23 @@
+package admin
+
+import "errors"
+
+type requestError struct {
+	detail string
+}
+
+func (e *requestError) Error() string {
+	return e.detail
+}
+
+func newRequestError(detail string) error {
+	return &requestError{detail: detail}
+}
+
+func requestErrorDetail(err error) (string, bool) {
+	var reqErr *requestError
+	if errors.As(err, &reqErr) {
+		return reqErr.detail, true
+	}
+	return "", false
+}

internal/admin/settings_validation.go

@@ -0,0 +1,64 @@
+package admin
+
+import (
+	"fmt"
+	"strings"
+
+	"ds2api/internal/config"
+)
+
+func normalizeSettingsConfig(c *config.Config) {
+	if c == nil {
+		return
+	}
+	c.Admin.PasswordHash = strings.TrimSpace(c.Admin.PasswordHash)
+	c.Toolcall.Mode = strings.ToLower(strings.TrimSpace(c.Toolcall.Mode))
+	c.Toolcall.EarlyEmitConfidence = strings.ToLower(strings.TrimSpace(c.Toolcall.EarlyEmitConfidence))
+	c.Embeddings.Provider = strings.TrimSpace(c.Embeddings.Provider)
+}
+
+func validateSettingsConfig(c config.Config) error {
+	if c.Admin.JWTExpireHours != 0 && (c.Admin.JWTExpireHours < 1 || c.Admin.JWTExpireHours > 720) {
+		return fmt.Errorf("admin.jwt_expire_hours must be between 1 and 720")
+	}
+	if err := validateRuntimeSettings(c.Runtime); err != nil {
+		return err
+	}
+	if c.Responses.StoreTTLSeconds != 0 && (c.Responses.StoreTTLSeconds < 30 || c.Responses.StoreTTLSeconds > 86400) {
+		return fmt.Errorf("responses.store_ttl_seconds must be between 30 and 86400")
+	}
+	if mode := strings.TrimSpace(c.Toolcall.Mode); mode != "" {
+		switch mode {
+		case "feature_match", "off":
+		default:
+			return fmt.Errorf("toolcall.mode must be feature_match or off")
+		}
+	}
+	if level := strings.TrimSpace(c.Toolcall.EarlyEmitConfidence); level != "" {
+		switch level {
+		case "high", "low", "off":
+		default:
+			return fmt.Errorf("toolcall.early_emit_confidence must be high, low or off")
+		}
+	}
+	if c.Embeddings.Provider != "" && strings.TrimSpace(c.Embeddings.Provider) == "" {
+		return fmt.Errorf("embeddings.provider cannot be empty")
+	}
+	return nil
+}
+
+func validateRuntimeSettings(runtime config.RuntimeConfig) error {
+	if runtime.AccountMaxInflight != 0 && (runtime.AccountMaxInflight < 1 || runtime.AccountMaxInflight > 256) {
+		return fmt.Errorf("runtime.account_max_inflight must be between 1 and 256")
+	}
+	if runtime.AccountMaxQueue != 0 && (runtime.AccountMaxQueue < 1 || runtime.AccountMaxQueue > 200000) {
+		return fmt.Errorf("runtime.account_max_queue must be between 1 and 200000")
+	}
+	if runtime.GlobalMaxInflight != 0 && (runtime.GlobalMaxInflight < 1 || runtime.GlobalMaxInflight > 200000) {
+		return fmt.Errorf("runtime.global_max_inflight must be between 1 and 200000")
+	}
+	if runtime.AccountMaxInflight > 0 && runtime.GlobalMaxInflight > 0 && runtime.GlobalMaxInflight < runtime.AccountMaxInflight {
+		return fmt.Errorf("runtime.global_max_inflight must be >= runtime.account_max_inflight")
+	}
+	return nil
+}

internal/auth/admin.go

@@ -3,7 +3,9 @@ package auth
 import (
 	"crypto/hmac"
 	"crypto/sha256"
+	"crypto/subtle"
 	"encoding/base64"
+	"encoding/hex"
 	"encoding/json"
 	"errors"
 	"log/slog"
@@ -17,7 +19,22 @@ import (
 
 var warnOnce sync.Once
 
+type AdminConfigReader interface {
+	AdminPasswordHash() string
+	AdminJWTExpireHours() int
+	AdminJWTValidAfterUnix() int64
+}
+
 func AdminKey() string {
+	return effectiveAdminKey(nil)
+}
+
+func effectiveAdminKey(store AdminConfigReader) string {
+	if store != nil {
+		if hash := strings.TrimSpace(store.AdminPasswordHash()); hash != "" {
+			return ""
+		}
+	}
 	if v := strings.TrimSpace(os.Getenv("DS2API_ADMIN_KEY")); v != "" {
 		return v
 	}
@@ -27,14 +44,24 @@ func AdminKey() string {
 	return "admin"
 }
 
-func jwtSecret() string {
+func jwtSecret(store AdminConfigReader) string {
 	if v := strings.TrimSpace(os.Getenv("DS2API_JWT_SECRET")); v != "" {
 		return v
 	}
-	return AdminKey()
+	if store != nil {
+		if hash := strings.TrimSpace(store.AdminPasswordHash()); hash != "" {
+			return hash
+		}
+	}
+	return effectiveAdminKey(store)
 }
 
-func jwtExpireHours() int {
+func jwtExpireHours(store AdminConfigReader) int {
+	if store != nil {
+		if n := store.AdminJWTExpireHours(); n > 0 {
+			return n
+		}
+	}
 	if v := strings.TrimSpace(os.Getenv("DS2API_JWT_EXPIRE_HOURS")); v != "" {
 		if n, err := strconv.Atoi(v); err == nil && n > 0 {
 			return n
@@ -44,27 +71,44 @@ func jwtExpireHours() int {
 }
 
 func CreateJWT(expireHours int) (string, error) {
+	return CreateJWTWithStore(expireHours, nil)
+}
+
+func CreateJWTWithStore(expireHours int, store AdminConfigReader) (string, error) {
 	if expireHours <= 0 {
-		expireHours = jwtExpireHours()
+		expireHours = jwtExpireHours(store)
 	}
+	issuedAt := time.Now().Unix()
+	// If sessions were invalidated in this same second, move iat forward by
+	// one second so newly minted tokens remain valid with strict cutoff checks.
+	if store != nil {
+		if validAfter := store.AdminJWTValidAfterUnix(); validAfter >= issuedAt {
+			issuedAt = validAfter + 1
+		}
+	}
+	expireAt := time.Unix(issuedAt, 0).Add(time.Duration(expireHours) * time.Hour).Unix()
 	header := map[string]any{"alg": "HS256", "typ": "JWT"}
-	payload := map[string]any{"iat": time.Now().Unix(), "exp": time.Now().Add(time.Duration(expireHours) * time.Hour).Unix(), "role": "admin"}
+	payload := map[string]any{"iat": issuedAt, "exp": expireAt, "role": "admin"}
 	h, _ := json.Marshal(header)
 	p, _ := json.Marshal(payload)
 	headerB64 := rawB64Encode(h)
 	payloadB64 := rawB64Encode(p)
 	msg := headerB64 + "." + payloadB64
-	sig := signHS256(msg)
+	sig := signHS256(msg, store)
 	return msg + "." + rawB64Encode(sig), nil
 }
 
 func VerifyJWT(token string) (map[string]any, error) {
+	return VerifyJWTWithStore(token, nil)
+}
+
+func VerifyJWTWithStore(token string, store AdminConfigReader) (map[string]any, error) {
 	parts := strings.Split(token, ".")
 	if len(parts) != 3 {
 		return nil, errors.New("invalid token format")
 	}
 	msg := parts[0] + "." + parts[1]
-	expected := signHS256(msg)
+	expected := signHS256(msg, store)
 	actual, err := rawB64Decode(parts[2])
 	if err != nil {
 		return nil, errors.New("invalid signature")
@@ -84,10 +128,23 @@ func VerifyJWT(token string) (map[string]any, error) {
 	if int64(exp) < time.Now().Unix() {
 		return nil, errors.New("token expired")
 	}
+	if store != nil {
+		validAfter := store.AdminJWTValidAfterUnix()
+		if validAfter > 0 {
+			iat, _ := payload["iat"].(float64)
+			if int64(iat) <= validAfter {
+				return nil, errors.New("token expired")
+			}
+		}
+	}
 	return payload, nil
 }
 
 func VerifyAdminRequest(r *http.Request) error {
+	return VerifyAdminRequestWithStore(r, nil)
+}
+
+func VerifyAdminRequestWithStore(r *http.Request, store AdminConfigReader) error {
 	authHeader := strings.TrimSpace(r.Header.Get("Authorization"))
 	if !strings.HasPrefix(strings.ToLower(authHeader), "bearer ") {
 		return errors.New("authentication required")
@@ -96,17 +153,65 @@ func VerifyAdminRequest(r *http.Request) error {
 	if token == "" {
 		return errors.New("authentication required")
 	}
-	if token == AdminKey() {
+	if VerifyAdminCredential(token, store) {
 		return nil
 	}
-	if _, err := VerifyJWT(token); err == nil {
+	if _, err := VerifyJWTWithStore(token, store); err == nil {
 		return nil
 	}
 	return errors.New("invalid credentials")
 }
 
-func signHS256(msg string) []byte {
-	h := hmac.New(sha256.New, []byte(jwtSecret()))
+func VerifyAdminCredential(candidate string, store AdminConfigReader) bool {
+	candidate = strings.TrimSpace(candidate)
+	if candidate == "" {
+		return false
+	}
+	if store != nil {
+		hash := strings.TrimSpace(store.AdminPasswordHash())
+		if hash != "" {
+			return verifyAdminPasswordHash(candidate, hash)
+		}
+	}
+	key := effectiveAdminKey(store)
+	if key == "" {
+		return false
+	}
+	return subtle.ConstantTimeCompare([]byte(candidate), []byte(key)) == 1
+}
+
+func UsingDefaultAdminKey(store AdminConfigReader) bool {
+	if store != nil && strings.TrimSpace(store.AdminPasswordHash()) != "" {
+		return false
+	}
+	return strings.TrimSpace(os.Getenv("DS2API_ADMIN_KEY")) == ""
+}
+
+func HashAdminPassword(raw string) string {
+	raw = strings.TrimSpace(raw)
+	if raw == "" {
+		return ""
+	}
+	sum := sha256.Sum256([]byte(raw))
+	return "sha256:" + hex.EncodeToString(sum[:])
+}
+
+func verifyAdminPasswordHash(candidate, encoded string) bool {
+	encoded = strings.TrimSpace(strings.ToLower(encoded))
+	if encoded == "" {
+		return false
+	}
+	if strings.HasPrefix(encoded, "sha256:") {
+		want := strings.TrimPrefix(encoded, "sha256:")
+		sum := sha256.Sum256([]byte(candidate))
+		got := hex.EncodeToString(sum[:])
+		return subtle.ConstantTimeCompare([]byte(got), []byte(want)) == 1
+	}
+	return subtle.ConstantTimeCompare([]byte(candidate), []byte(encoded)) == 1
+}
+
+func signHS256(msg string, store AdminConfigReader) []byte {
+	h := hmac.New(sha256.New, []byte(jwtSecret(store)))
 	_, _ = h.Write([]byte(msg))
 	return h.Sum(nil)
 }

internal/auth/admin_test.go

@@ -3,6 +3,8 @@ package auth
 import (
 	"net/http"
 	"testing"
+
+	"ds2api/internal/config"
 )
 
 func TestJWTCreateVerify(t *testing.T) {
@@ -27,3 +29,58 @@ func TestVerifyAdminRequest(t *testing.T) {
 		t.Fatalf("expected token accepted: %v", err)
 	}
 }
+
+func TestVerifyJWTWithStoreValidAfter(t *testing.T) {
+	t.Setenv("DS2API_CONFIG_JSON", `{"admin":{"password_hash":"`+HashAdminPassword("oldpass")+`"}}`)
+	store := config.LoadStore()
+	token, err := CreateJWTWithStore(1, store)
+	if err != nil {
+		t.Fatalf("create jwt failed: %v", err)
+	}
+	if _, err := VerifyJWTWithStore(token, store); err != nil {
+		t.Fatalf("verify before invalidation failed: %v", err)
+	}
+	if err := store.Update(func(c *config.Config) error {
+		c.Admin.JWTValidAfterUnix = 1<<62 - 1
+		return nil
+	}); err != nil {
+		t.Fatalf("set valid-after failed: %v", err)
+	}
+	if _, err := VerifyJWTWithStore(token, store); err == nil {
+		t.Fatal("expected token invalid after valid-after update")
+	}
+}
+
+func TestVerifyJWTWithStoreSameSecondInvalidationAndRelogin(t *testing.T) {
+	t.Setenv("DS2API_CONFIG_JSON", `{"admin":{"password_hash":"`+HashAdminPassword("oldpass")+`"}}`)
+	store := config.LoadStore()
+
+	oldToken, err := CreateJWTWithStore(1, store)
+	if err != nil {
+		t.Fatalf("create old jwt failed: %v", err)
+	}
+	oldPayload, err := VerifyJWTWithStore(oldToken, store)
+	if err != nil {
+		t.Fatalf("verify old jwt before invalidation failed: %v", err)
+	}
+	oldIAT, _ := oldPayload["iat"].(float64)
+
+	if err := store.Update(func(c *config.Config) error {
+		c.Admin.JWTValidAfterUnix = int64(oldIAT)
+		return nil
+	}); err != nil {
+		t.Fatalf("set valid-after failed: %v", err)
+	}
+
+	if _, err := VerifyJWTWithStore(oldToken, store); err == nil {
+		t.Fatal("expected old token invalid when iat == valid-after")
+	}
+
+	newToken, err := CreateJWTWithStore(1, store)
+	if err != nil {
+		t.Fatalf("create new jwt failed: %v", err)
+	}
+	if _, err := VerifyJWTWithStore(newToken, store); err != nil {
+		t.Fatalf("expected new token valid after invalidation cutoff: %v", err)
+	}
+}

internal/claudeconv/convert.go

@@ -0,0 +1,48 @@
+package claudeconv
+
+import "strings"
+
+type ClaudeMappingProvider interface {
+	ClaudeMapping() map[string]string
+}
+
+func ConvertClaudeToDeepSeek(claudeReq map[string]any, mappingProvider ClaudeMappingProvider, defaultClaudeModel string) map[string]any {
+	messages, _ := claudeReq["messages"].([]any)
+	model, _ := claudeReq["model"].(string)
+	if model == "" {
+		model = defaultClaudeModel
+	}
+
+	mapping := map[string]string{}
+	if mappingProvider != nil {
+		mapping = mappingProvider.ClaudeMapping()
+	}
+	dsModel := mapping["fast"]
+	if dsModel == "" {
+		dsModel = "deepseek-chat"
+	}
+
+	modelLower := strings.ToLower(model)
+	if strings.Contains(modelLower, "opus") || strings.Contains(modelLower, "reasoner") || strings.Contains(modelLower, "slow") {
+		if slow := mapping["slow"]; slow != "" {
+			dsModel = slow
+		}
+	}
+
+	convertedMessages := make([]any, 0, len(messages)+1)
+	if system, ok := claudeReq["system"].(string); ok && system != "" {
+		convertedMessages = append(convertedMessages, map[string]any{"role": "system", "content": system})
+	}
+	convertedMessages = append(convertedMessages, messages...)
+
+	out := map[string]any{"model": dsModel, "messages": convertedMessages}
+	for _, k := range []string{"temperature", "top_p", "stream"} {
+		if v, ok := claudeReq[k]; ok {
+			out[k] = v
+		}
+	}
+	if stopSeq, ok := claudeReq["stop_sequences"]; ok {
+		out["stop"] = stopSeq
+	}
+	return out
+}

internal/compat/go_compat_test.go

@@ -0,0 +1,142 @@
+package compat
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"reflect"
+	"testing"
+
+	"ds2api/internal/sse"
+	"ds2api/internal/util"
+)
+
+func TestGoCompatSSEFixtures(t *testing.T) {
+	files, err := filepath.Glob(compatPath("fixtures", "sse_chunks", "*.json"))
+	if err != nil {
+		t.Fatalf("glob fixtures failed: %v", err)
+	}
+	if len(files) == 0 {
+		t.Fatal("no sse fixtures found")
+	}
+	for _, fixturePath := range files {
+		name := trimExt(filepath.Base(fixturePath))
+		expectedPath := compatPath("expected", "sse_"+name+".json")
+
+		var fixture struct {
+			Chunk          map[string]any `json:"chunk"`
+			ThinkingEnable bool           `json:"thinking_enabled"`
+			CurrentType    string         `json:"current_type"`
+		}
+		mustLoadJSON(t, fixturePath, &fixture)
+
+		var expected struct {
+			Parts    []map[string]any `json:"parts"`
+			Finished bool             `json:"finished"`
+			NewType  string           `json:"new_type"`
+		}
+		mustLoadJSON(t, expectedPath, &expected)
+
+		parts, finished, newType := sse.ParseSSEChunkForContent(fixture.Chunk, fixture.ThinkingEnable, fixture.CurrentType)
+		gotParts := make([]map[string]any, 0, len(parts))
+		for _, p := range parts {
+			gotParts = append(gotParts, map[string]any{
+				"text": p.Text,
+				"type": p.Type,
+			})
+		}
+		if !reflect.DeepEqual(gotParts, expected.Parts) || finished != expected.Finished || newType != expected.NewType {
+			t.Fatalf("fixture %s mismatch:\n got parts=%#v finished=%v newType=%q\nwant parts=%#v finished=%v newType=%q",
+				name, gotParts, finished, newType, expected.Parts, expected.Finished, expected.NewType)
+		}
+	}
+}
+
+func TestGoCompatToolcallFixtures(t *testing.T) {
+	files, err := filepath.Glob(compatPath("fixtures", "toolcalls", "*.json"))
+	if err != nil {
+		t.Fatalf("glob toolcall fixtures failed: %v", err)
+	}
+	if len(files) == 0 {
+		t.Fatal("no toolcall fixtures found")
+	}
+	for _, fixturePath := range files {
+		name := trimExt(filepath.Base(fixturePath))
+		expectedPath := compatPath("expected", "toolcalls_"+name+".json")
+
+		var fixture struct {
+			Text      string   `json:"text"`
+			ToolNames []string `json:"tool_names"`
+		}
+		mustLoadJSON(t, fixturePath, &fixture)
+
+		var expected struct {
+			Calls []util.ParsedToolCall `json:"calls"`
+		}
+		mustLoadJSON(t, expectedPath, &expected)
+
+		got := util.ParseToolCalls(fixture.Text, fixture.ToolNames)
+		if len(got) == 0 && len(expected.Calls) == 0 {
+			continue
+		}
+		if !reflect.DeepEqual(got, expected.Calls) {
+			t.Fatalf("toolcall fixture %s mismatch:\n got=%#v\nwant=%#v", name, got, expected.Calls)
+		}
+	}
+}
+
+func TestGoCompatTokenFixtures(t *testing.T) {
+	var fixture struct {
+		Cases []struct {
+			Name string `json:"name"`
+			Text string `json:"text"`
+		} `json:"cases"`
+	}
+	mustLoadJSON(t, compatPath("fixtures", "token_cases.json"), &fixture)
+
+	var expected struct {
+		Cases []struct {
+			Name   string `json:"name"`
+			Tokens int    `json:"tokens"`
+		} `json:"cases"`
+	}
+	mustLoadJSON(t, compatPath("expected", "token_cases.json"), &expected)
+
+	expectByName := map[string]int{}
+	for _, c := range expected.Cases {
+		expectByName[c.Name] = c.Tokens
+	}
+	for _, c := range fixture.Cases {
+		want, ok := expectByName[c.Name]
+		if !ok {
+			t.Fatalf("missing expected token case: %s", c.Name)
+		}
+		got := util.EstimateTokens(c.Text)
+		if got != want {
+			t.Fatalf("token fixture %s mismatch: got=%d want=%d", c.Name, got, want)
+		}
+	}
+}
+
+func mustLoadJSON(t *testing.T, path string, out any) {
+	t.Helper()
+	b, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatalf("read %s failed: %v", path, err)
+	}
+	if err := json.Unmarshal(b, out); err != nil {
+		t.Fatalf("decode %s failed: %v", path, err)
+	}
+}
+
+func trimExt(name string) string {
+	if len(name) > 5 && name[len(name)-5:] == ".json" {
+		return name[:len(name)-5]
+	}
+	return name
+}
+
+func compatPath(parts ...string) string {
+	prefix := []string{"..", "..", "tests", "compat"}
+	return filepath.Join(append(prefix, parts...)...)
+}

internal/config/config.go

@@ -11,6 +11,7 @@ import (
 	"os"
 	"path/filepath"
 	"slices"
+	"strconv"
 	"strings"
 	"sync"
 )
@@ -63,6 +64,8 @@ type Config struct {
 	ClaudeMapping    map[string]string `json:"claude_mapping,omitempty"`
 	ClaudeModelMap   map[string]string `json:"claude_model_mapping,omitempty"`
 	ModelAliases     map[string]string `json:"model_aliases,omitempty"`
+	Admin            AdminConfig       `json:"admin,omitempty"`
+	Runtime          RuntimeConfig     `json:"runtime,omitempty"`
 	Compat           CompatConfig      `json:"compat,omitempty"`
 	Toolcall         ToolcallConfig    `json:"toolcall,omitempty"`
 	Responses        ResponsesConfig   `json:"responses,omitempty"`
@@ -76,6 +79,18 @@ type CompatConfig struct {
 	WideInputStrictOutput *bool `json:"wide_input_strict_output,omitempty"`
 }
 
+type AdminConfig struct {
+	PasswordHash      string `json:"password_hash,omitempty"`
+	JWTExpireHours    int    `json:"jwt_expire_hours,omitempty"`
+	JWTValidAfterUnix int64  `json:"jwt_valid_after_unix,omitempty"`
+}
+
+type RuntimeConfig struct {
+	AccountMaxInflight int `json:"account_max_inflight,omitempty"`
+	AccountMaxQueue    int `json:"account_max_queue,omitempty"`
+	GlobalMaxInflight  int `json:"global_max_inflight,omitempty"`
+}
+
 type ToolcallConfig struct {
 	Mode                string `json:"mode,omitempty"`
 	EarlyEmitConfidence string `json:"early_emit_confidence,omitempty"`
@@ -109,6 +124,12 @@ func (c Config) MarshalJSON() ([]byte, error) {
 	if len(c.ModelAliases) > 0 {
 		m["model_aliases"] = c.ModelAliases
 	}
+	if strings.TrimSpace(c.Admin.PasswordHash) != "" || c.Admin.JWTExpireHours > 0 || c.Admin.JWTValidAfterUnix > 0 {
+		m["admin"] = c.Admin
+	}
+	if c.Runtime.AccountMaxInflight > 0 || c.Runtime.AccountMaxQueue > 0 || c.Runtime.GlobalMaxInflight > 0 {
+		m["runtime"] = c.Runtime
+	}
 	if c.Compat.WideInputStrictOutput != nil {
 		m["compat"] = c.Compat
 	}
@@ -158,6 +179,14 @@ func (c *Config) UnmarshalJSON(b []byte) error {
 			if err := json.Unmarshal(v, &c.ModelAliases); err != nil {
 				return fmt.Errorf("invalid field %q: %w", k, err)
 			}
+		case "admin":
+			if err := json.Unmarshal(v, &c.Admin); err != nil {
+				return fmt.Errorf("invalid field %q: %w", k, err)
+			}
+		case "runtime":
+			if err := json.Unmarshal(v, &c.Runtime); err != nil {
+				return fmt.Errorf("invalid field %q: %w", k, err)
+			}
 		case "compat":
 			if err := json.Unmarshal(v, &c.Compat); err != nil {
 				return fmt.Errorf("invalid field %q: %w", k, err)
@@ -199,6 +228,8 @@ func (c Config) Clone() Config {
 		ClaudeMapping:  cloneStringMap(c.ClaudeMapping),
 		ClaudeModelMap: cloneStringMap(c.ClaudeModelMap),
 		ModelAliases:   cloneStringMap(c.ModelAliases),
+		Admin:          c.Admin,
+		Runtime:        c.Runtime,
 		Compat: CompatConfig{
 			WideInputStrictOutput: cloneBoolPtr(c.Compat.WideInputStrictOutput),
 		},
@@ -621,3 +652,92 @@ func (s *Store) EmbeddingsProvider() string {
 	defer s.mu.RUnlock()
 	return strings.TrimSpace(s.cfg.Embeddings.Provider)
 }
+
+func (s *Store) AdminPasswordHash() string {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return strings.TrimSpace(s.cfg.Admin.PasswordHash)
+}
+
+func (s *Store) AdminJWTExpireHours() int {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	if s.cfg.Admin.JWTExpireHours > 0 {
+		return s.cfg.Admin.JWTExpireHours
+	}
+	if raw := strings.TrimSpace(os.Getenv("DS2API_JWT_EXPIRE_HOURS")); raw != "" {
+		if n, err := strconv.Atoi(raw); err == nil && n > 0 {
+			return n
+		}
+	}
+	return 24
+}
+
+func (s *Store) AdminJWTValidAfterUnix() int64 {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return s.cfg.Admin.JWTValidAfterUnix
+}
+
+func (s *Store) RuntimeAccountMaxInflight() int {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	if s.cfg.Runtime.AccountMaxInflight > 0 {
+		return s.cfg.Runtime.AccountMaxInflight
+	}
+	for _, key := range []string{"DS2API_ACCOUNT_MAX_INFLIGHT", "DS2API_ACCOUNT_CONCURRENCY"} {
+		raw := strings.TrimSpace(os.Getenv(key))
+		if raw == "" {
+			continue
+		}
+		n, err := strconv.Atoi(raw)
+		if err == nil && n > 0 {
+			return n
+		}
+	}
+	return 2
+}
+
+func (s *Store) RuntimeAccountMaxQueue(defaultSize int) int {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	if s.cfg.Runtime.AccountMaxQueue > 0 {
+		return s.cfg.Runtime.AccountMaxQueue
+	}
+	for _, key := range []string{"DS2API_ACCOUNT_MAX_QUEUE", "DS2API_ACCOUNT_QUEUE_SIZE"} {
+		raw := strings.TrimSpace(os.Getenv(key))
+		if raw == "" {
+			continue
+		}
+		n, err := strconv.Atoi(raw)
+		if err == nil && n >= 0 {
+			return n
+		}
+	}
+	if defaultSize < 0 {
+		return 0
+	}
+	return defaultSize
+}
+
+func (s *Store) RuntimeGlobalMaxInflight(defaultSize int) int {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	if s.cfg.Runtime.GlobalMaxInflight > 0 {
+		return s.cfg.Runtime.GlobalMaxInflight
+	}
+	for _, key := range []string{"DS2API_GLOBAL_MAX_INFLIGHT", "DS2API_MAX_INFLIGHT"} {
+		raw := strings.TrimSpace(os.Getenv(key))
+		if raw == "" {
+			continue
+		}
+		n, err := strconv.Atoi(raw)
+		if err == nil && n > 0 {
+			return n
+		}
+	}
+	if defaultSize < 0 {
+		return 0
+	}
+	return defaultSize
+}

internal/config/models.go

@@ -10,6 +10,10 @@ type ModelInfo struct {
 	Permission []any  `json:"permission,omitempty"`
 }
 
+type ModelAliasReader interface {
+	ModelAliases() map[string]string
+}
+
 var DeepSeekModels = []ModelInfo{
 	{ID: "deepseek-chat", Object: "model", Created: 1677610602, OwnedBy: "deepseek", Permission: []any{}},
 	{ID: "deepseek-reasoner", Object: "model", Created: 1677610602, OwnedBy: "deepseek", Permission: []any{}},
@@ -104,7 +108,7 @@ func DefaultModelAliases() map[string]string {
 	}
 }
 
-func ResolveModel(store *Store, requested string) (string, bool) {
+func ResolveModel(store ModelAliasReader, requested string) (string, bool) {
 	model := lower(strings.TrimSpace(requested))
 	if model == "" {
 		return "", false
@@ -172,7 +176,7 @@ func OpenAIModelsResponse() map[string]any {
 	return map[string]any{"object": "list", "data": DeepSeekModels}
 }
 
-func OpenAIModelByID(store *Store, id string) (ModelInfo, bool) {
+func OpenAIModelByID(store ModelAliasReader, id string) (ModelInfo, bool) {
 	canonical, ok := ResolveModel(store, id)
 	if !ok {
 		return ModelInfo{}, false

internal/deepseek/constants.go

@@ -1,5 +1,10 @@
 package deepseek
 
+import (
+	_ "embed"
+	"encoding/json"
+)
+
 const (
 	DeepSeekHost             = "chat.deepseek.com"
 	DeepSeekLoginURL         = "https://chat.deepseek.com/api/v0/users/login"
@@ -8,7 +13,7 @@ const (
 	DeepSeekCompletionURL    = "https://chat.deepseek.com/api/v0/chat/completion"
 )
 
-var BaseHeaders = map[string]string{
+var defaultBaseHeaders = map[string]string{
 	"Host":              "chat.deepseek.com",
 	"User-Agent":        "DeepSeek/1.6.11 Android/35",
 	"Accept":            "application/json",
@@ -19,6 +24,75 @@ var BaseHeaders = map[string]string{
 	"accept-charset":    "UTF-8",
 }
 
+var defaultSkipContainsPatterns = []string{
+	"quasi_status",
+	"elapsed_secs",
+	"token_usage",
+	"pending_fragment",
+	"conversation_mode",
+	"fragments/-1/status",
+	"fragments/-2/status",
+	"fragments/-3/status",
+}
+
+var defaultSkipExactPaths = []string{
+	"response/search_status",
+}
+
+var BaseHeaders = cloneStringMap(defaultBaseHeaders)
+var SkipContainsPatterns = cloneStringSlice(defaultSkipContainsPatterns)
+var SkipExactPathSet = toStringSet(defaultSkipExactPaths)
+
+type sharedConstants struct {
+	BaseHeaders         map[string]string `json:"base_headers"`
+	SkipContainsPattern []string          `json:"skip_contains_patterns"`
+	SkipExactPaths      []string          `json:"skip_exact_paths"`
+}
+
+//go:embed constants_shared.json
+var sharedConstantsJSON []byte
+
+func init() {
+	cfg := sharedConstants{}
+	if err := json.Unmarshal(sharedConstantsJSON, &cfg); err != nil {
+		return
+	}
+	if len(cfg.BaseHeaders) > 0 {
+		BaseHeaders = cloneStringMap(cfg.BaseHeaders)
+	}
+	if len(cfg.SkipContainsPattern) > 0 {
+		SkipContainsPatterns = cloneStringSlice(cfg.SkipContainsPattern)
+	}
+	if len(cfg.SkipExactPaths) > 0 {
+		SkipExactPathSet = toStringSet(cfg.SkipExactPaths)
+	}
+}
+
+func cloneStringMap(in map[string]string) map[string]string {
+	out := make(map[string]string, len(in))
+	for k, v := range in {
+		out[k] = v
+	}
+	return out
+}
+
+func cloneStringSlice(in []string) []string {
+	out := make([]string, len(in))
+	copy(out, in)
+	return out
+}
+
+func toStringSet(in []string) map[string]struct{} {
+	out := make(map[string]struct{}, len(in))
+	for _, v := range in {
+		if v == "" {
+			continue
+		}
+		out[v] = struct{}{}
+	}
+	return out
+}
+
 const (
 	KeepAliveTimeout  = 5
 	StreamIdleTimeout = 30

internal/deepseek/constants_shared.json

@@ -0,0 +1,25 @@
+{
+  "base_headers": {
+    "Host": "chat.deepseek.com",
+    "User-Agent": "DeepSeek/1.6.11 Android/35",
+    "Accept": "application/json",
+    "Content-Type": "application/json",
+    "x-client-platform": "android",
+    "x-client-version": "1.6.11",
+    "x-client-locale": "zh_CN",
+    "accept-charset": "UTF-8"
+  },
+  "skip_contains_patterns": [
+    "quasi_status",
+    "elapsed_secs",
+    "token_usage",
+    "pending_fragment",
+    "conversation_mode",
+    "fragments/-1/status",
+    "fragments/-2/status",
+    "fragments/-3/status"
+  ],
+  "skip_exact_paths": [
+    "response/search_status"
+  ]
+}

internal/deepseek/constants_test.go

@@ -0,0 +1,15 @@
+package deepseek
+
+import "testing"
+
+func TestSharedConstantsLoaded(t *testing.T) {
+	if BaseHeaders["x-client-platform"] != "android" {
+		t.Fatalf("unexpected base header x-client-platform=%q", BaseHeaders["x-client-platform"])
+	}
+	if len(SkipContainsPatterns) == 0 {
+		t.Fatal("expected skip contains patterns to be loaded")
+	}
+	if _, ok := SkipExactPathSet["response/search_status"]; !ok {
+		t.Fatal("expected response/search_status in exact skip path set")
+	}
+}

internal/deepseek/prompt.go

@@ -0,0 +1,7 @@
+package deepseek
+
+import "ds2api/internal/prompt"
+
+func MessagesPrepare(messages []map[string]any) string {
+	return prompt.MessagesPrepare(messages)
+}

internal/format/claude/render.go

@@ -0,0 +1,46 @@
+package claude
+
+import (
+	"fmt"
+	"time"
+
+	"ds2api/internal/util"
+)
+
+func BuildMessageResponse(messageID, model string, normalizedMessages []any, finalThinking, finalText string, toolNames []string) map[string]any {
+	detected := util.ParseToolCalls(finalText, toolNames)
+	content := make([]map[string]any, 0, 4)
+	if finalThinking != "" {
+		content = append(content, map[string]any{"type": "thinking", "thinking": finalThinking})
+	}
+	stopReason := "end_turn"
+	if len(detected) > 0 {
+		stopReason = "tool_use"
+		for i, tc := range detected {
+			content = append(content, map[string]any{
+				"type":  "tool_use",
+				"id":    fmt.Sprintf("toolu_%d_%d", time.Now().Unix(), i),
+				"name":  tc.Name,
+				"input": tc.Input,
+			})
+		}
+	} else {
+		if finalText == "" {
+			finalText = "抱歉，没有生成有效的响应内容。"
+		}
+		content = append(content, map[string]any{"type": "text", "text": finalText})
+	}
+	return map[string]any{
+		"id":            messageID,
+		"type":          "message",
+		"role":          "assistant",
+		"model":         model,
+		"content":       content,
+		"stop_reason":   stopReason,
+		"stop_sequence": nil,
+		"usage": map[string]any{
+			"input_tokens":  util.EstimateTokens(fmt.Sprintf("%v", normalizedMessages)),
+			"output_tokens": util.EstimateTokens(finalThinking) + util.EstimateTokens(finalText),
+		},
+	}
+}

internal/format/openai/render.go

@@ -0,0 +1,193 @@
+package openai
+
+import (
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+
+	"ds2api/internal/util"
+)
+
+func BuildChatCompletion(completionID, model, finalPrompt, finalThinking, finalText string, toolNames []string) map[string]any {
+	detected := util.ParseToolCalls(finalText, toolNames)
+	finishReason := "stop"
+	messageObj := map[string]any{"role": "assistant", "content": finalText}
+	if strings.TrimSpace(finalThinking) != "" {
+		messageObj["reasoning_content"] = finalThinking
+	}
+	if len(detected) > 0 {
+		finishReason = "tool_calls"
+		messageObj["tool_calls"] = util.FormatOpenAIToolCalls(detected)
+		messageObj["content"] = nil
+	}
+	promptTokens := util.EstimateTokens(finalPrompt)
+	reasoningTokens := util.EstimateTokens(finalThinking)
+	completionTokens := util.EstimateTokens(finalText)
+
+	return map[string]any{
+		"id":      completionID,
+		"object":  "chat.completion",
+		"created": time.Now().Unix(),
+		"model":   model,
+		"choices": []map[string]any{{"index": 0, "message": messageObj, "finish_reason": finishReason}},
+		"usage": map[string]any{
+			"prompt_tokens":     promptTokens,
+			"completion_tokens": reasoningTokens + completionTokens,
+			"total_tokens":      promptTokens + reasoningTokens + completionTokens,
+			"completion_tokens_details": map[string]any{
+				"reasoning_tokens": reasoningTokens,
+			},
+		},
+	}
+}
+
+func BuildResponseObject(responseID, model, finalPrompt, finalThinking, finalText string, toolNames []string) map[string]any {
+	detected := util.ParseToolCalls(finalText, toolNames)
+	exposedOutputText := finalText
+	output := make([]any, 0, 2)
+	if len(detected) > 0 {
+		exposedOutputText = ""
+		toolCalls := make([]any, 0, len(detected))
+		for _, tc := range detected {
+			toolCalls = append(toolCalls, map[string]any{
+				"type":      "tool_call",
+				"name":      tc.Name,
+				"arguments": tc.Input,
+			})
+		}
+		output = append(output, map[string]any{
+			"type":       "tool_calls",
+			"tool_calls": toolCalls,
+		})
+	} else {
+		content := []any{
+			map[string]any{
+				"type": "output_text",
+				"text": finalText,
+			},
+		}
+		if finalThinking != "" {
+			content = append([]any{map[string]any{
+				"type": "reasoning",
+				"text": finalThinking,
+			}}, content...)
+		}
+		output = append(output, map[string]any{
+			"type":    "message",
+			"id":      "msg_" + strings.ReplaceAll(uuid.NewString(), "-", ""),
+			"role":    "assistant",
+			"content": content,
+		})
+	}
+	promptTokens := util.EstimateTokens(finalPrompt)
+	reasoningTokens := util.EstimateTokens(finalThinking)
+	completionTokens := util.EstimateTokens(finalText)
+	return map[string]any{
+		"id":          responseID,
+		"type":        "response",
+		"object":      "response",
+		"created_at":  time.Now().Unix(),
+		"status":      "completed",
+		"model":       model,
+		"output":      output,
+		"output_text": exposedOutputText,
+		"usage": map[string]any{
+			"input_tokens":  promptTokens,
+			"output_tokens": reasoningTokens + completionTokens,
+			"total_tokens":  promptTokens + reasoningTokens + completionTokens,
+		},
+	}
+}
+
+func BuildChatStreamDeltaChoice(index int, delta map[string]any) map[string]any {
+	return map[string]any{
+		"delta": delta,
+		"index": index,
+	}
+}
+
+func BuildChatStreamFinishChoice(index int, finishReason string) map[string]any {
+	return map[string]any{
+		"delta":         map[string]any{},
+		"index":         index,
+		"finish_reason": finishReason,
+	}
+}
+
+func BuildChatStreamChunk(completionID string, created int64, model string, choices []map[string]any, usage map[string]any) map[string]any {
+	out := map[string]any{
+		"id":      completionID,
+		"object":  "chat.completion.chunk",
+		"created": created,
+		"model":   model,
+		"choices": choices,
+	}
+	if len(usage) > 0 {
+		out["usage"] = usage
+	}
+	return out
+}
+
+func BuildChatUsage(finalPrompt, finalThinking, finalText string) map[string]any {
+	promptTokens := util.EstimateTokens(finalPrompt)
+	reasoningTokens := util.EstimateTokens(finalThinking)
+	completionTokens := util.EstimateTokens(finalText)
+	return map[string]any{
+		"prompt_tokens":     promptTokens,
+		"completion_tokens": reasoningTokens + completionTokens,
+		"total_tokens":      promptTokens + reasoningTokens + completionTokens,
+		"completion_tokens_details": map[string]any{
+			"reasoning_tokens": reasoningTokens,
+		},
+	}
+}
+
+func BuildResponsesCreatedPayload(responseID, model string) map[string]any {
+	return map[string]any{
+		"type":   "response.created",
+		"id":     responseID,
+		"object": "response",
+		"model":  model,
+		"status": "in_progress",
+	}
+}
+
+func BuildResponsesTextDeltaPayload(responseID, delta string) map[string]any {
+	return map[string]any{
+		"type":  "response.output_text.delta",
+		"id":    responseID,
+		"delta": delta,
+	}
+}
+
+func BuildResponsesReasoningDeltaPayload(responseID, delta string) map[string]any {
+	return map[string]any{
+		"type":  "response.reasoning.delta",
+		"id":    responseID,
+		"delta": delta,
+	}
+}
+
+func BuildResponsesToolCallDeltaPayload(responseID string, toolCalls []map[string]any) map[string]any {
+	return map[string]any{
+		"type":       "response.output_tool_call.delta",
+		"id":         responseID,
+		"tool_calls": toolCalls,
+	}
+}
+
+func BuildResponsesToolCallDonePayload(responseID string, toolCalls []map[string]any) map[string]any {
+	return map[string]any{
+		"type":       "response.output_tool_call.done",
+		"id":         responseID,
+		"tool_calls": toolCalls,
+	}
+}
+
+func BuildResponsesCompletedPayload(response map[string]any) map[string]any {
+	return map[string]any{
+		"type":     "response.completed",
+		"response": response,
+	}
+}

internal/prompt/messages.go

@@ -0,0 +1,84 @@
+package prompt
+
+import (
+	"encoding/json"
+	"fmt"
+	"regexp"
+	"strings"
+)
+
+var markdownImagePattern = regexp.MustCompile(`!\[(.*?)\]\((.*?)\)`)
+
+func MessagesPrepare(messages []map[string]any) string {
+	type block struct {
+		Role string
+		Text string
+	}
+	processed := make([]block, 0, len(messages))
+	for _, m := range messages {
+		role, _ := m["role"].(string)
+		text := NormalizeContent(m["content"])
+		processed = append(processed, block{Role: role, Text: text})
+	}
+	if len(processed) == 0 {
+		return ""
+	}
+	merged := make([]block, 0, len(processed))
+	for _, msg := range processed {
+		if len(merged) > 0 && merged[len(merged)-1].Role == msg.Role {
+			merged[len(merged)-1].Text += "\n\n" + msg.Text
+			continue
+		}
+		merged = append(merged, msg)
+	}
+	parts := make([]string, 0, len(merged))
+	for i, m := range merged {
+		switch m.Role {
+		case "assistant":
+			parts = append(parts, "<｜Assistant｜>"+m.Text+"<｜end▁of▁sentence｜>")
+		case "user", "system":
+			if i > 0 {
+				parts = append(parts, "<｜User｜>"+m.Text)
+			} else {
+				parts = append(parts, m.Text)
+			}
+		default:
+			parts = append(parts, m.Text)
+		}
+	}
+	out := strings.Join(parts, "")
+	return markdownImagePattern.ReplaceAllString(out, `[${1}](${2})`)
+}
+
+func NormalizeContent(v any) string {
+	switch x := v.(type) {
+	case string:
+		return x
+	case []any:
+		parts := make([]string, 0, len(x))
+		for _, item := range x {
+			m, ok := item.(map[string]any)
+			if !ok {
+				continue
+			}
+			typeStr, _ := m["type"].(string)
+			typeStr = strings.ToLower(strings.TrimSpace(typeStr))
+			if typeStr == "text" || typeStr == "output_text" || typeStr == "input_text" {
+				if txt, ok := m["text"].(string); ok {
+					parts = append(parts, txt)
+					continue
+				}
+				if txt, ok := m["content"].(string); ok {
+					parts = append(parts, txt)
+				}
+			}
+		}
+		return strings.Join(parts, "\n")
+	default:
+		b, err := json.Marshal(v)
+		if err != nil {
+			return fmt.Sprintf("%v", v)
+		}
+		return string(b)
+	}
+}

internal/sse/parser.go

@@ -4,6 +4,8 @@ import (
 	"bytes"
 	"encoding/json"
 	"strings"
+
+	"ds2api/internal/deepseek"
 )
 
 type ContentPart struct {
@@ -11,11 +13,6 @@ type ContentPart struct {
 	Type string
 }
 
-var skipPatterns = []string{
-	"quasi_status", "elapsed_secs", "token_usage", "pending_fragment", "conversation_mode",
-	"fragments/-1/status", "fragments/-2/status", "fragments/-3/status",
-}
-
 func ParseDeepSeekSSELine(raw []byte) (map[string]any, bool, bool) {
 	line := strings.TrimSpace(string(raw))
 	if line == "" || !strings.HasPrefix(line, "data:") {
@@ -33,10 +30,10 @@ func ParseDeepSeekSSELine(raw []byte) (map[string]any, bool, bool) {
 }
 
 func shouldSkipPath(path string) bool {
-	if path == "response/search_status" {
+	if _, ok := deepseek.SkipExactPathSet[path]; ok {
 		return true
 	}
-	for _, p := range skipPatterns {
+	for _, p := range deepseek.SkipContainsPatterns {
 		if strings.Contains(path, p) {
 			return true
 		}
@@ -60,126 +57,159 @@ func ParseSSEChunkForContent(chunk map[string]any, thinkingEnabled bool, current
 	}
 	newType := currentFragmentType
 	parts := make([]ContentPart, 0, 8)
+	collectDirectFragments(path, chunk, v, &newType, &parts)
+	updateTypeFromNestedResponse(path, v, &newType)
+	partType := resolvePartType(path, thinkingEnabled, newType)
+	finished := appendChunkValueContent(v, partType, &newType, &parts, path)
+	if finished {
+		return nil, true, newType
+	}
+	return parts, false, newType
+}
 
-	// Newer DeepSeek responses may emit fragment APPEND directly on
-	// path "response/fragments" instead of wrapping it in path "response".
-	if path == "response/fragments" {
-		if op, _ := chunk["o"].(string); strings.EqualFold(op, "APPEND") {
-			if frags, ok := v.([]any); ok {
-				for _, frag := range frags {
-					fm, ok := frag.(map[string]any)
-					if !ok {
-						continue
-					}
-					t, _ := fm["type"].(string)
-					content, _ := fm["content"].(string)
-					t = strings.ToUpper(t)
-					switch t {
-					case "THINK", "THINKING":
-						newType = "thinking"
-						if content != "" {
-							parts = append(parts, ContentPart{Text: content, Type: "thinking"})
-						}
-					case "RESPONSE":
-						newType = "text"
-						if content != "" {
-							parts = append(parts, ContentPart{Text: content, Type: "text"})
-						}
-					default:
-						if content != "" {
-							parts = append(parts, ContentPart{Text: content, Type: "text"})
-						}
-					}
-				}
+func collectDirectFragments(path string, chunk map[string]any, v any, newType *string, parts *[]ContentPart) {
+	if path != "response/fragments" {
+		return
+	}
+	op, _ := chunk["o"].(string)
+	if !strings.EqualFold(op, "APPEND") {
+		return
+	}
+	frags, ok := v.([]any)
+	if !ok {
+		return
+	}
+	for _, frag := range frags {
+		m, ok := frag.(map[string]any)
+		if !ok {
+			continue
+		}
+		typeName, content, fragType := parseFragmentTypeContent(m)
+		if typeName == "" {
+			typeName = fragType
+		}
+		switch typeName {
+		case "THINK", "THINKING":
+			*newType = "thinking"
+			appendContentPart(parts, content, "thinking")
+		case "RESPONSE":
+			*newType = "text"
+			appendContentPart(parts, content, "text")
+		default:
+			appendContentPart(parts, content, "text")
+		}
+	}
+}
+
+func updateTypeFromNestedResponse(path string, v any, newType *string) {
+	if path != "response" {
+		return
+	}
+	arr, ok := v.([]any)
+	if !ok {
+		return
+	}
+	for _, it := range arr {
+		m, ok := it.(map[string]any)
+		if !ok || m["p"] != "fragments" || m["o"] != "APPEND" {
+			continue
+		}
+		frags, ok := m["v"].([]any)
+		if !ok {
+			continue
+		}
+		for _, frag := range frags {
+			fm, ok := frag.(map[string]any)
+			if !ok {
+				continue
+			}
+			typeName, _, _ := parseFragmentTypeContent(fm)
+			switch typeName {
+			case "THINK", "THINKING":
+				*newType = "thinking"
+			case "RESPONSE":
+				*newType = "text"
 			}
 		}
 	}
+}
 
-	if path == "response" {
-		if arr, ok := v.([]any); ok {
-			for _, it := range arr {
-				m, ok := it.(map[string]any)
-				if !ok {
-					continue
-				}
-				if m["p"] == "fragments" && m["o"] == "APPEND" {
-					if frags, ok := m["v"].([]any); ok {
-						for _, frag := range frags {
-							fm, ok := frag.(map[string]any)
-							if !ok {
-								continue
-							}
-							t, _ := fm["type"].(string)
-							t = strings.ToUpper(t)
-							if t == "THINK" || t == "THINKING" {
-								newType = "thinking"
-							} else if t == "RESPONSE" {
-								newType = "text"
-							}
-						}
-					}
-				}
-			}
-		}
-	}
-	partType := "text"
+func resolvePartType(path string, thinkingEnabled bool, newType string) string {
 	switch {
 	case path == "response/thinking_content":
-		partType = "thinking"
+		return "thinking"
 	case path == "response/content":
-		partType = "text"
+		return "text"
 	case strings.Contains(path, "response/fragments") && strings.Contains(path, "/content"):
-		partType = newType
-	case path == "":
-		if thinkingEnabled {
-			partType = newType
-		}
+		return newType
+	case path == "" && thinkingEnabled:
+		return newType
+	default:
+		return "text"
 	}
+}
+
+func appendChunkValueContent(v any, partType string, newType *string, parts *[]ContentPart, path string) bool {
 	switch val := v.(type) {
 	case string:
 		if val == "FINISHED" && (path == "" || path == "status") {
-			return nil, true, newType
-		}
-		if val != "" {
-			parts = append(parts, ContentPart{Text: val, Type: partType})
+			return true
 		}
+		appendContentPart(parts, val, partType)
 	case []any:
 		pp, finished := extractContentRecursive(val, partType)
 		if finished {
-			return nil, true, newType
+			return true
 		}
-		parts = append(parts, pp...)
+		*parts = append(*parts, pp...)
 	case map[string]any:
-		resp := val
-		if wrapped, ok := val["response"].(map[string]any); ok {
-			resp = wrapped
+		appendWrappedFragments(val, partType, newType, parts)
+	}
+	return false
+}
+
+func appendWrappedFragments(val map[string]any, partType string, newType *string, parts *[]ContentPart) {
+	resp := val
+	if wrapped, ok := val["response"].(map[string]any); ok {
+		resp = wrapped
+	}
+	frags, ok := resp["fragments"].([]any)
+	if !ok {
+		return
+	}
+	for _, item := range frags {
+		m, ok := item.(map[string]any)
+		if !ok {
+			continue
 		}
-		if frags, ok := resp["fragments"].([]any); ok {
-			for _, item := range frags {
-				m, ok := item.(map[string]any)
-				if !ok {
-					continue
-				}
-				t, _ := m["type"].(string)
-				content, _ := m["content"].(string)
-				t = strings.ToUpper(t)
-				if t == "THINK" || t == "THINKING" {
-					newType = "thinking"
-					if content != "" {
-						parts = append(parts, ContentPart{Text: content, Type: "thinking"})
-					}
-				} else if t == "RESPONSE" {
-					newType = "text"
-					if content != "" {
-						parts = append(parts, ContentPart{Text: content, Type: "text"})
-					}
-				} else if content != "" {
-					parts = append(parts, ContentPart{Text: content, Type: partType})
-				}
-			}
+		typeName, content, fragType := parseFragmentTypeContent(m)
+		if typeName == "" {
+			typeName = fragType
+		}
+		switch typeName {
+		case "THINK", "THINKING":
+			*newType = "thinking"
+			appendContentPart(parts, content, "thinking")
+		case "RESPONSE":
+			*newType = "text"
+			appendContentPart(parts, content, "text")
+		default:
+			appendContentPart(parts, content, partType)
 		}
 	}
-	return parts, false, newType
+}
+
+func parseFragmentTypeContent(m map[string]any) (string, string, string) {
+	typeName, _ := m["type"].(string)
+	content, _ := m["content"].(string)
+	return strings.ToUpper(typeName), content, strings.ToUpper(typeName)
+}
+
+func appendContentPart(parts *[]ContentPart, content, kind string) {
+	if content == "" {
+		return
+	}
+	*parts = append(*parts, ContentPart{Text: content, Type: kind})
 }
 
 func extractContentRecursive(items []any, defaultType string) ([]ContentPart, bool) {

internal/stream/engine.go

@@ -0,0 +1,128 @@
+package stream
+
+import (
+	"context"
+	"io"
+	"time"
+
+	"ds2api/internal/sse"
+)
+
+type StopReason string
+
+const (
+	StopReasonNone              StopReason = ""
+	StopReasonContextCancelled  StopReason = "context_cancelled"
+	StopReasonNoContentTimeout  StopReason = "no_content_timeout"
+	StopReasonIdleTimeout       StopReason = "idle_timeout"
+	StopReasonUpstreamCompleted StopReason = "upstream_completed"
+	StopReasonHandlerRequested  StopReason = "handler_requested"
+)
+
+type ConsumeConfig struct {
+	Context             context.Context
+	Body                io.Reader
+	ThinkingEnabled     bool
+	InitialType         string
+	KeepAliveInterval   time.Duration
+	IdleTimeout         time.Duration
+	MaxKeepAliveNoInput int
+}
+
+type ParsedDecision struct {
+	Stop        bool
+	StopReason  StopReason
+	ContentSeen bool
+}
+
+type ConsumeHooks struct {
+	OnParsed      func(parsed sse.LineResult) ParsedDecision
+	OnKeepAlive   func()
+	OnFinalize    func(reason StopReason, scannerErr error)
+	OnContextDone func()
+}
+
+func ConsumeSSE(cfg ConsumeConfig, hooks ConsumeHooks) {
+	if cfg.Context == nil {
+		cfg.Context = context.Background()
+	}
+	initialType := cfg.InitialType
+	if initialType == "" {
+		if cfg.ThinkingEnabled {
+			initialType = "thinking"
+		} else {
+			initialType = "text"
+		}
+	}
+	parsedLines, done := sse.StartParsedLinePump(cfg.Context, cfg.Body, cfg.ThinkingEnabled, initialType)
+
+	var ticker *time.Ticker
+	if cfg.KeepAliveInterval > 0 {
+		ticker = time.NewTicker(cfg.KeepAliveInterval)
+		defer ticker.Stop()
+	}
+
+	hasContent := false
+	lastContent := time.Now()
+	keepaliveCount := 0
+
+	finalize := func(reason StopReason, scannerErr error) {
+		if hooks.OnFinalize != nil {
+			hooks.OnFinalize(reason, scannerErr)
+		}
+	}
+
+	for {
+		select {
+		case <-cfg.Context.Done():
+			if hooks.OnContextDone != nil {
+				hooks.OnContextDone()
+			}
+			return
+		case <-tickCh(ticker):
+			if !hasContent {
+				keepaliveCount++
+				if cfg.MaxKeepAliveNoInput > 0 && keepaliveCount >= cfg.MaxKeepAliveNoInput {
+					finalize(StopReasonNoContentTimeout, nil)
+					return
+				}
+			}
+			if hasContent && cfg.IdleTimeout > 0 && time.Since(lastContent) > cfg.IdleTimeout {
+				finalize(StopReasonIdleTimeout, nil)
+				return
+			}
+			if hooks.OnKeepAlive != nil {
+				hooks.OnKeepAlive()
+			}
+		case parsed, ok := <-parsedLines:
+			if !ok {
+				finalize(StopReasonUpstreamCompleted, <-done)
+				return
+			}
+			if hooks.OnParsed == nil {
+				continue
+			}
+			decision := hooks.OnParsed(parsed)
+			if decision.ContentSeen {
+				hasContent = true
+				lastContent = time.Now()
+				keepaliveCount = 0
+			}
+			if decision.Stop {
+				reason := decision.StopReason
+				if reason == StopReasonNone {
+					reason = StopReasonHandlerRequested
+				}
+				finalize(reason, nil)
+				return
+			}
+		}
+	}
+}
+
+func tickCh(ticker *time.Ticker) <-chan time.Time {
+	if ticker == nil {
+		return nil
+	}
+	return ticker.C
+}

internal/testsuite/runner.go

@@ -327,7 +327,7 @@ func (r *Runner) runPreflight(ctx context.Context) error {
 		{"go", "test", "./...", "-count=1"},
 		{"node", "--check", "api/chat-stream.js"},
 		{"node", "--check", "api/helpers/stream-tool-sieve.js"},
-		{"node", "--test", "api/helpers/stream-tool-sieve.test.js", "api/chat-stream.test.js"},
+		{"node", "--test", "api/helpers/stream-tool-sieve.test.js", "api/chat-stream.test.js", "api/compat/js_compat_test.js"},
 		{"npm", "run", "build", "--prefix", "webui"},
 	}
 	f, err := os.OpenFile(r.preflightLog, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644)

internal/util/messages.go

@@ -1,16 +1,11 @@
 package util
 
 import (
-	"encoding/json"
-	"fmt"
-	"regexp"
-	"strings"
-
+	"ds2api/internal/claudeconv"
 	"ds2api/internal/config"
+	"ds2api/internal/prompt"
 )
 
-var markdownImagePattern = regexp.MustCompile(`!\[(.*?)\]\((.*?)\)`)
-
 const ClaudeDefaultModel = "claude-sonnet-4-5"
 
 type Message struct {
@@ -19,112 +14,15 @@ type Message struct {
 }
 
 func MessagesPrepare(messages []map[string]any) string {
-	type block struct {
-		Role string
-		Text string
-	}
-	processed := make([]block, 0, len(messages))
-	for _, m := range messages {
-		role, _ := m["role"].(string)
-		text := normalizeContent(m["content"])
-		processed = append(processed, block{Role: role, Text: text})
-	}
-	if len(processed) == 0 {
-		return ""
-	}
-	merged := make([]block, 0, len(processed))
-	for _, msg := range processed {
-		if len(merged) > 0 && merged[len(merged)-1].Role == msg.Role {
-			merged[len(merged)-1].Text += "\n\n" + msg.Text
-			continue
-		}
-		merged = append(merged, msg)
-	}
-	parts := make([]string, 0, len(merged))
-	for i, m := range merged {
-		switch m.Role {
-		case "assistant":
-			parts = append(parts, "<｜Assistant｜>"+m.Text+"<｜end▁of▁sentence｜>")
-		case "user", "system":
-			if i > 0 {
-				parts = append(parts, "<｜User｜>"+m.Text)
-			} else {
-				parts = append(parts, m.Text)
-			}
-		default:
-			parts = append(parts, m.Text)
-		}
-	}
-	out := strings.Join(parts, "")
-	return markdownImagePattern.ReplaceAllString(out, `[${1}](${2})`)
+	return prompt.MessagesPrepare(messages)
 }
 
 func normalizeContent(v any) string {
-	switch x := v.(type) {
-	case string:
-		return x
-	case []any:
-		parts := make([]string, 0, len(x))
-		for _, item := range x {
-			m, ok := item.(map[string]any)
-			if !ok {
-				continue
-			}
-			typeStr, _ := m["type"].(string)
-			typeStr = strings.ToLower(strings.TrimSpace(typeStr))
-			if typeStr == "text" || typeStr == "output_text" || typeStr == "input_text" {
-				if txt, ok := m["text"].(string); ok {
-					parts = append(parts, txt)
-					continue
-				}
-				if txt, ok := m["content"].(string); ok {
-					parts = append(parts, txt)
-				}
-			}
-		}
-		return strings.Join(parts, "\n")
-	default:
-		b, err := json.Marshal(v)
-		if err != nil {
-			return fmt.Sprintf("%v", v)
-		}
-		return string(b)
-	}
+	return prompt.NormalizeContent(v)
 }
 
 func ConvertClaudeToDeepSeek(claudeReq map[string]any, store *config.Store) map[string]any {
-	messages, _ := claudeReq["messages"].([]any)
-	model, _ := claudeReq["model"].(string)
-	if model == "" {
-		model = ClaudeDefaultModel
-	}
-	mapping := store.ClaudeMapping()
-	dsModel := mapping["fast"]
-	if dsModel == "" {
-		dsModel = "deepseek-chat"
-	}
-	modelLower := strings.ToLower(model)
-	if strings.Contains(modelLower, "opus") || strings.Contains(modelLower, "reasoner") || strings.Contains(modelLower, "slow") {
-		if slow := mapping["slow"]; slow != "" {
-			dsModel = slow
-		}
-	}
-	convertedMessages := make([]any, 0, len(messages)+1)
-	if system, ok := claudeReq["system"].(string); ok && system != "" {
-		convertedMessages = append(convertedMessages, map[string]any{"role": "system", "content": system})
-	}
-	convertedMessages = append(convertedMessages, messages...)
-
-	out := map[string]any{"model": dsModel, "messages": convertedMessages}
-	for _, k := range []string{"temperature", "top_p", "stream"} {
-		if v, ok := claudeReq[k]; ok {
-			out[k] = v
-		}
-	}
-	if stopSeq, ok := claudeReq["stop_sequences"]; ok {
-		out["stop"] = stopSeq
-	}
-	return out
+	return claudeconv.ConvertClaudeToDeepSeek(claudeReq, store, ClaudeDefaultModel)
 }
 
 // EstimateTokens provides a rough token count approximation.

internal/util/render.go

@@ -8,6 +8,8 @@ import (
 	"github.com/google/uuid"
 )
 
+// BuildOpenAIChatCompletion is kept for backward compatibility.
+// Prefer internal/format/openai.BuildChatCompletion for new code.
 func BuildOpenAIChatCompletion(completionID, model, finalPrompt, finalThinking, finalText string, toolNames []string) map[string]any {
 	detected := ParseToolCalls(finalText, toolNames)
 	finishReason := "stop"
@@ -41,6 +43,8 @@ func BuildOpenAIChatCompletion(completionID, model, finalPrompt, finalThinking,
 	}
 }
 
+// BuildOpenAIResponseObject is kept for backward compatibility.
+// Prefer internal/format/openai.BuildResponseObject for new code.
 func BuildOpenAIResponseObject(responseID, model, finalPrompt, finalThinking, finalText string, toolNames []string) map[string]any {
 	detected := ParseToolCalls(finalText, toolNames)
 	exposedOutputText := finalText
@@ -101,6 +105,8 @@ func BuildOpenAIResponseObject(responseID, model, finalPrompt, finalThinking, fi
 	}
 }
 
+// BuildClaudeMessageResponse is kept for backward compatibility.
+// Prefer internal/format/claude.BuildMessageResponse for new code.
 func BuildClaudeMessageResponse(messageID, model string, normalizedMessages []any, finalThinking, finalText string, toolNames []string) map[string]any {
 	detected := ParseToolCalls(finalText, toolNames)
 	content := make([]map[string]any, 0, 4)

internal/util/render_stream.go

@@ -1,5 +1,7 @@
 package util
 
+// BuildOpenAIChatStreamDeltaChoice is kept for backward compatibility.
+// Prefer internal/format/openai.BuildChatStreamDeltaChoice for new code.
 func BuildOpenAIChatStreamDeltaChoice(index int, delta map[string]any) map[string]any {
 	return map[string]any{
 		"delta": delta,
@@ -7,6 +9,8 @@ func BuildOpenAIChatStreamDeltaChoice(index int, delta map[string]any) map[strin
 	}
 }
 
+// BuildOpenAIChatStreamFinishChoice is kept for backward compatibility.
+// Prefer internal/format/openai.BuildChatStreamFinishChoice for new code.
 func BuildOpenAIChatStreamFinishChoice(index int, finishReason string) map[string]any {
 	return map[string]any{
 		"delta":         map[string]any{},
@@ -15,6 +19,8 @@ func BuildOpenAIChatStreamFinishChoice(index int, finishReason string) map[strin
 	}
 }
 
+// BuildOpenAIChatStreamChunk is kept for backward compatibility.
+// Prefer internal/format/openai.BuildChatStreamChunk for new code.
 func BuildOpenAIChatStreamChunk(completionID string, created int64, model string, choices []map[string]any, usage map[string]any) map[string]any {
 	out := map[string]any{
 		"id":      completionID,
@@ -29,6 +35,8 @@ func BuildOpenAIChatStreamChunk(completionID string, created int64, model string
 	return out
 }
 
+// BuildOpenAIChatUsage is kept for backward compatibility.
+// Prefer internal/format/openai.BuildChatUsage for new code.
 func BuildOpenAIChatUsage(finalPrompt, finalThinking, finalText string) map[string]any {
 	promptTokens := EstimateTokens(finalPrompt)
 	reasoningTokens := EstimateTokens(finalThinking)
@@ -43,6 +51,8 @@ func BuildOpenAIChatUsage(finalPrompt, finalThinking, finalText string) map[stri
 	}
 }
 
+// BuildOpenAIResponsesCreatedPayload is kept for backward compatibility.
+// Prefer internal/format/openai.BuildResponsesCreatedPayload for new code.
 func BuildOpenAIResponsesCreatedPayload(responseID, model string) map[string]any {
 	return map[string]any{
 		"type":   "response.created",
@@ -53,6 +63,8 @@ func BuildOpenAIResponsesCreatedPayload(responseID, model string) map[string]any
 	}
 }
 
+// BuildOpenAIResponsesTextDeltaPayload is kept for backward compatibility.
+// Prefer internal/format/openai.BuildResponsesTextDeltaPayload for new code.
 func BuildOpenAIResponsesTextDeltaPayload(responseID, delta string) map[string]any {
 	return map[string]any{
 		"type":  "response.output_text.delta",
@@ -61,6 +73,8 @@ func BuildOpenAIResponsesTextDeltaPayload(responseID, delta string) map[string]a
 	}
 }
 
+// BuildOpenAIResponsesReasoningDeltaPayload is kept for backward compatibility.
+// Prefer internal/format/openai.BuildResponsesReasoningDeltaPayload for new code.
 func BuildOpenAIResponsesReasoningDeltaPayload(responseID, delta string) map[string]any {
 	return map[string]any{
 		"type":  "response.reasoning.delta",
@@ -69,6 +83,8 @@ func BuildOpenAIResponsesReasoningDeltaPayload(responseID, delta string) map[str
 	}
 }
 
+// BuildOpenAIResponsesToolCallDeltaPayload is kept for backward compatibility.
+// Prefer internal/format/openai.BuildResponsesToolCallDeltaPayload for new code.
 func BuildOpenAIResponsesToolCallDeltaPayload(responseID string, toolCalls []map[string]any) map[string]any {
 	return map[string]any{
 		"type":       "response.output_tool_call.delta",
@@ -77,6 +93,8 @@ func BuildOpenAIResponsesToolCallDeltaPayload(responseID string, toolCalls []map
 	}
 }
 
+// BuildOpenAIResponsesToolCallDonePayload is kept for backward compatibility.
+// Prefer internal/format/openai.BuildResponsesToolCallDonePayload for new code.
 func BuildOpenAIResponsesToolCallDonePayload(responseID string, toolCalls []map[string]any) map[string]any {
 	return map[string]any{
 		"type":       "response.output_tool_call.done",
@@ -85,6 +103,8 @@ func BuildOpenAIResponsesToolCallDonePayload(responseID string, toolCalls []map[
 	}
 }
 
+// BuildOpenAIResponsesCompletedPayload is kept for backward compatibility.
+// Prefer internal/format/openai.BuildResponsesCompletedPayload for new code.
 func BuildOpenAIResponsesCompletedPayload(response map[string]any) map[string]any {
 	return map[string]any{
 		"type":     "response.completed",

tests/compat/expected/sse_fragments_append.json

@@ -0,0 +1,8 @@
+{
+  "parts": [
+    {"text": "思考中", "type": "thinking"},
+    {"text": "结论", "type": "text"}
+  ],
+  "finished": false,
+  "new_type": "text"
+}

tests/compat/expected/sse_nested_finished.json

@@ -0,0 +1,5 @@
+{
+  "parts": [],
+  "finished": true,
+  "new_type": "text"
+}

tests/compat/expected/sse_split_tool_json.json

@@ -0,0 +1,8 @@
+{
+  "parts": [
+    {"text": "{\"", "type": "text"},
+    {"text": "tool_calls\":[{\"name\":\"read_file\",\"input\":{\"path\":\"README.MD\"}}]}", "type": "text"}
+  ],
+  "finished": false,
+  "new_type": "text"
+}

tests/compat/expected/token_cases.json

@@ -0,0 +1,7 @@
+{
+  "cases": [
+    {"name": "ascii_short", "tokens": 1},
+    {"name": "cjk", "tokens": 3},
+    {"name": "mixed", "tokens": 4}
+  ]
+}

tests/compat/expected/toolcalls_fenced_json.json

@@ -0,0 +1,3 @@
+{
+  "calls": []
+}

tests/compat/expected/toolcalls_unknown_name.json

@@ -0,0 +1,5 @@
+{
+  "calls": [
+    {"name": "unknown_tool", "input": {"x": 1}}
+  ]
+}

tests/compat/fixtures/sse_chunks/fragments_append.json

@@ -0,0 +1,12 @@
+{
+  "chunk": {
+    "p": "response/fragments",
+    "o": "APPEND",
+    "v": [
+      {"type": "THINK", "content": "思考中"},
+      {"type": "RESPONSE", "content": "结论"}
+    ]
+  },
+  "thinking_enabled": true,
+  "current_type": "thinking"
+}

tests/compat/fixtures/sse_chunks/nested_finished.json

@@ -0,0 +1,10 @@
+{
+  "chunk": {
+    "p": "response",
+    "v": [
+      {"p": "status", "v": "FINISHED"}
+    ]
+  },
+  "thinking_enabled": false,
+  "current_type": "text"
+}

tests/compat/fixtures/sse_chunks/split_tool_json.json

@@ -0,0 +1,11 @@
+{
+  "chunk": {
+    "p": "response",
+    "v": [
+      {"p": "response/content", "v": "{\""},
+      {"p": "response/content", "v": "tool_calls\":[{\"name\":\"read_file\",\"input\":{\"path\":\"README.MD\"}}]}"}
+    ]
+  },
+  "thinking_enabled": false,
+  "current_type": "text"
+}

tests/compat/fixtures/token_cases.json

@@ -0,0 +1,7 @@
+{
+  "cases": [
+    {"name": "ascii_short", "text": "abcd"},
+    {"name": "cjk", "text": "你好世界"},
+    {"name": "mixed", "text": "Hello 你好世界"}
+  ]
+}

tests/compat/fixtures/toolcalls/fenced_json.json

@@ -0,0 +1,4 @@
+{
+  "text": "```json\n{\"tool_calls\":[{\"name\":\"read_file\",\"input\":{\"path\":\"README.MD\"}}]}\n```",
+  "tool_names": ["read_file"]
+}

tests/compat/fixtures/toolcalls/unknown_name.json

@@ -0,0 +1,4 @@
+{
+  "text": "{\"tool_calls\":[{\"name\":\"unknown_tool\",\"input\":{\"x\":1}}]}",
+  "tool_names": ["read_file"]
+}

webui/src/App.jsx

@@ -11,6 +11,7 @@ import {
     Key,
     Upload,
     Cloud,
+    Settings as SettingsIcon,
     LogOut,
     Menu,
     X,
@@ -23,12 +24,13 @@ import AccountManager from './components/AccountManager'
 import ApiTester from './components/ApiTester'
 import BatchImport from './components/BatchImport'
 import VercelSync from './components/VercelSync'
+import Settings from './components/Settings'
 import Login from './components/Login'
 import LandingPage from './components/LandingPage'
 import LanguageToggle from './components/LanguageToggle'
 import { useI18n } from './i18n'
 
-function Dashboard({ token, onLogout, config, fetchConfig, showMessage, message }) {
+function Dashboard({ token, onLogout, config, fetchConfig, showMessage, message, onForceLogout }) {
     const { t } = useI18n()
     const [activeTab, setActiveTab] = useState('accounts')
     const [sidebarOpen, setSidebarOpen] = useState(false)
@@ -39,6 +41,7 @@ function Dashboard({ token, onLogout, config, fetchConfig, showMessage, message
         { id: 'test', label: t('nav.test.label'), icon: Server, description: t('nav.test.desc') },
         { id: 'import', label: t('nav.import.label'), icon: Upload, description: t('nav.import.desc') },
         { id: 'vercel', label: t('nav.vercel.label'), icon: Cloud, description: t('nav.vercel.desc') },
+        { id: 'settings', label: t('nav.settings.label'), icon: SettingsIcon, description: t('nav.settings.desc') },
     ]
 
     const authFetch = async (url, options = {}) => {
@@ -65,6 +68,8 @@ function Dashboard({ token, onLogout, config, fetchConfig, showMessage, message
                 return <BatchImport onRefresh={fetchConfig} onMessage={showMessage} authFetch={authFetch} />
             case 'vercel':
                 return <VercelSync onMessage={showMessage} authFetch={authFetch} />
+            case 'settings':
+                return <Settings onRefresh={fetchConfig} onMessage={showMessage} authFetch={authFetch} onForceLogout={onForceLogout} />
             default:
                 return null
         }
@@ -314,6 +319,7 @@ export default function App() {
                         fetchConfig={fetchConfig}
                         showMessage={showMessage}
                         message={message}
+                        onForceLogout={handleLogout}
                     />
                 ) : (
                     <div className="min-h-screen flex flex-col bg-background relative overflow-hidden">

webui/src/components/Settings.jsx

@@ -0,0 +1,376 @@
+import { useCallback, useEffect, useMemo, useState } from 'react'
+import { AlertTriangle, Download, Lock, Save, Upload } from 'lucide-react'
+import { useI18n } from '../i18n'
+
+export default function Settings({ onRefresh, onMessage, authFetch, onForceLogout }) {
+    const { t } = useI18n()
+    const apiFetch = authFetch || fetch
+
+    const [loading, setLoading] = useState(false)
+    const [saving, setSaving] = useState(false)
+    const [changingPassword, setChangingPassword] = useState(false)
+    const [importing, setImporting] = useState(false)
+    const [exportData, setExportData] = useState(null)
+    const [importMode, setImportMode] = useState('merge')
+    const [importText, setImportText] = useState('')
+    const [newPassword, setNewPassword] = useState('')
+    const [settingsMeta, setSettingsMeta] = useState({ default_password_warning: false, env_backed: false, needs_vercel_sync: false })
+
+    const [form, setForm] = useState({
+        admin: { jwt_expire_hours: 24 },
+        runtime: { account_max_inflight: 2, account_max_queue: 10, global_max_inflight: 10 },
+        toolcall: { mode: 'feature_match', early_emit_confidence: 'high' },
+        responses: { store_ttl_seconds: 900 },
+        embeddings: { provider: '' },
+        claude_mapping_text: '{\n  "fast": "deepseek-chat",\n  "slow": "deepseek-reasoner"\n}',
+        model_aliases_text: '{}',
+    })
+
+    const parseJSONMap = (raw, fieldName) => {
+        const text = String(raw || '').trim()
+        if (!text) {
+            return {}
+        }
+        let parsed
+        try {
+            parsed = JSON.parse(text)
+        } catch (_e) {
+            throw new Error(t('settings.invalidJsonField', { field: fieldName }))
+        }
+        if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) {
+            throw new Error(t('settings.invalidJsonField', { field: fieldName }))
+        }
+        return parsed
+    }
+
+    const loadSettings = useCallback(async () => {
+        setLoading(true)
+        try {
+            const res = await apiFetch('/admin/settings')
+            const data = await res.json()
+            if (!res.ok) {
+                onMessage('error', data.detail || t('settings.loadFailed'))
+                return
+            }
+            setSettingsMeta({
+                default_password_warning: Boolean(data.admin?.default_password_warning),
+                env_backed: Boolean(data.env_backed),
+                needs_vercel_sync: Boolean(data.needs_vercel_sync),
+            })
+            setForm({
+                admin: { jwt_expire_hours: Number(data.admin?.jwt_expire_hours || 24) },
+                runtime: {
+                    account_max_inflight: Number(data.runtime?.account_max_inflight || 2),
+                    account_max_queue: Number(data.runtime?.account_max_queue || 10),
+                    global_max_inflight: Number(data.runtime?.global_max_inflight || 10),
+                },
+                toolcall: {
+                    mode: data.toolcall?.mode || 'feature_match',
+                    early_emit_confidence: data.toolcall?.early_emit_confidence || 'high',
+                },
+                responses: {
+                    store_ttl_seconds: Number(data.responses?.store_ttl_seconds || 900),
+                },
+                embeddings: {
+                    provider: data.embeddings?.provider || '',
+                },
+                claude_mapping_text: JSON.stringify(data.claude_mapping || {}, null, 2),
+                model_aliases_text: JSON.stringify(data.model_aliases || {}, null, 2),
+            })
+        } catch (e) {
+            onMessage('error', t('settings.loadFailed'))
+            // eslint-disable-next-line no-console
+            console.error(e)
+        } finally {
+            setLoading(false)
+        }
+    }, [apiFetch, onMessage, t])
+
+    useEffect(() => {
+        loadSettings()
+    }, [loadSettings])
+
+    const saveSettings = async () => {
+        let claudeMapping = {}
+        let modelAliases = {}
+        try {
+            claudeMapping = parseJSONMap(form.claude_mapping_text, 'claude_mapping')
+            modelAliases = parseJSONMap(form.model_aliases_text, 'model_aliases')
+        } catch (e) {
+            onMessage('error', e.message)
+            return
+        }
+
+        const payload = {
+            admin: { jwt_expire_hours: Number(form.admin.jwt_expire_hours) },
+            runtime: {
+                account_max_inflight: Number(form.runtime.account_max_inflight),
+                account_max_queue: Number(form.runtime.account_max_queue),
+                global_max_inflight: Number(form.runtime.global_max_inflight),
+            },
+            toolcall: {
+                mode: String(form.toolcall.mode || '').trim(),
+                early_emit_confidence: String(form.toolcall.early_emit_confidence || '').trim(),
+            },
+            responses: { store_ttl_seconds: Number(form.responses.store_ttl_seconds) },
+            embeddings: { provider: String(form.embeddings.provider || '').trim() },
+            claude_mapping: claudeMapping,
+            model_aliases: modelAliases,
+        }
+
+        setSaving(true)
+        try {
+            const res = await apiFetch('/admin/settings', {
+                method: 'PUT',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify(payload),
+            })
+            const data = await res.json()
+            if (!res.ok) {
+                onMessage('error', data.detail || t('settings.saveFailed'))
+                return
+            }
+            onMessage('success', t('settings.saveSuccess'))
+            if (typeof onRefresh === 'function') {
+                onRefresh()
+            }
+            await loadSettings()
+        } catch (e) {
+            onMessage('error', t('settings.saveFailed'))
+            // eslint-disable-next-line no-console
+            console.error(e)
+        } finally {
+            setSaving(false)
+        }
+    }
+
+    const updatePassword = async () => {
+        if (String(newPassword || '').trim().length < 4) {
+            onMessage('error', t('settings.passwordTooShort'))
+            return
+        }
+        setChangingPassword(true)
+        try {
+            const res = await apiFetch('/admin/settings/password', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ new_password: newPassword.trim() }),
+            })
+            const data = await res.json()
+            if (!res.ok) {
+                onMessage('error', data.detail || t('settings.passwordUpdateFailed'))
+                return
+            }
+            onMessage('success', t('settings.passwordUpdated'))
+            setNewPassword('')
+            if (typeof onForceLogout === 'function') {
+                onForceLogout()
+            }
+        } catch (e) {
+            onMessage('error', t('settings.passwordUpdateFailed'))
+        } finally {
+            setChangingPassword(false)
+        }
+    }
+
+    const loadExportData = async () => {
+        try {
+            const res = await apiFetch('/admin/config/export')
+            const data = await res.json()
+            if (!res.ok) {
+                onMessage('error', data.detail || t('settings.exportFailed'))
+                return
+            }
+            setExportData(data)
+            onMessage('success', t('settings.exportLoaded'))
+        } catch (e) {
+            onMessage('error', t('settings.exportFailed'))
+        }
+    }
+
+    const doImport = async () => {
+        if (!String(importText || '').trim()) {
+            onMessage('error', t('settings.importEmpty'))
+            return
+        }
+        let parsed
+        try {
+            parsed = JSON.parse(importText)
+        } catch (_e) {
+            onMessage('error', t('settings.importInvalidJson'))
+            return
+        }
+        setImporting(true)
+        try {
+            const res = await apiFetch(`/admin/config/import?mode=${encodeURIComponent(importMode)}`, {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ config: parsed, mode: importMode }),
+            })
+            const data = await res.json()
+            if (!res.ok) {
+                onMessage('error', data.detail || t('settings.importFailed'))
+                return
+            }
+            onMessage('success', t('settings.importSuccess', { mode: importMode }))
+            if (typeof onRefresh === 'function') {
+                onRefresh()
+            }
+            await loadSettings()
+        } catch (e) {
+            onMessage('error', t('settings.importFailed'))
+        } finally {
+            setImporting(false)
+        }
+    }
+
+    const syncHintVisible = useMemo(() => settingsMeta.env_backed || settingsMeta.needs_vercel_sync, [settingsMeta.env_backed, settingsMeta.needs_vercel_sync])
+
+    return (
+        <div className="space-y-6">
+            {settingsMeta.default_password_warning && (
+                <div className="p-4 rounded-lg border border-amber-300/30 bg-amber-500/10 text-amber-700 flex items-center gap-2">
+                    <AlertTriangle className="w-4 h-4" />
+                    <span className="text-sm">{t('settings.defaultPasswordWarning')}</span>
+                </div>
+            )}
+            {syncHintVisible && (
+                <div className="p-4 rounded-lg border border-amber-300/30 bg-amber-500/10 text-amber-700 flex items-center gap-2">
+                    <AlertTriangle className="w-4 h-4" />
+                    <span className="text-sm">{t('settings.vercelSyncHint')}</span>
+                </div>
+            )}
+
+            <div className="bg-card border border-border rounded-xl p-5 space-y-4">
+                <h3 className="font-semibold">{t('settings.securityTitle')}</h3>
+                <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.jwtExpireHours')}</span>
+                        <input
+                            type="number"
+                            min={1}
+                            max={720}
+                            value={form.admin.jwt_expire_hours}
+                            onChange={(e) => setForm((prev) => ({ ...prev, admin: { ...prev.admin, jwt_expire_hours: Number(e.target.value || 1) } }))}
+                            className="w-full bg-background border border-border rounded-lg px-3 py-2"
+                        />
+                    </label>
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.newPassword')}</span>
+                        <div className="flex gap-2">
+                            <input
+                                type="password"
+                                value={newPassword}
+                                onChange={(e) => setNewPassword(e.target.value)}
+                                placeholder={t('settings.newPasswordPlaceholder')}
+                                className="w-full bg-background border border-border rounded-lg px-3 py-2"
+                            />
+                            <button
+                                type="button"
+                                onClick={updatePassword}
+                                disabled={changingPassword}
+                                className="px-3 py-2 rounded-lg bg-secondary border border-border hover:bg-secondary/80 text-sm flex items-center gap-1"
+                            >
+                                <Lock className="w-4 h-4" />
+                                {changingPassword ? t('settings.updating') : t('settings.updatePassword')}
+                            </button>
+                        </div>
+                    </label>
+                </div>
+            </div>
+
+            <div className="bg-card border border-border rounded-xl p-5 space-y-4">
+                <h3 className="font-semibold">{t('settings.runtimeTitle')}</h3>
+                <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.accountMaxInflight')}</span>
+                        <input type="number" min={1} value={form.runtime.account_max_inflight} onChange={(e) => setForm((prev) => ({ ...prev, runtime: { ...prev.runtime, account_max_inflight: Number(e.target.value || 1) } }))} className="w-full bg-background border border-border rounded-lg px-3 py-2" />
+                    </label>
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.accountMaxQueue')}</span>
+                        <input type="number" min={1} value={form.runtime.account_max_queue} onChange={(e) => setForm((prev) => ({ ...prev, runtime: { ...prev.runtime, account_max_queue: Number(e.target.value || 1) } }))} className="w-full bg-background border border-border rounded-lg px-3 py-2" />
+                    </label>
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.globalMaxInflight')}</span>
+                        <input type="number" min={1} value={form.runtime.global_max_inflight} onChange={(e) => setForm((prev) => ({ ...prev, runtime: { ...prev.runtime, global_max_inflight: Number(e.target.value || 1) } }))} className="w-full bg-background border border-border rounded-lg px-3 py-2" />
+                    </label>
+                </div>
+            </div>
+
+            <div className="bg-card border border-border rounded-xl p-5 space-y-4">
+                <h3 className="font-semibold">{t('settings.behaviorTitle')}</h3>
+                <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.toolcallMode')}</span>
+                        <select value={form.toolcall.mode} onChange={(e) => setForm((prev) => ({ ...prev, toolcall: { ...prev.toolcall, mode: e.target.value } }))} className="w-full bg-background border border-border rounded-lg px-3 py-2">
+                            <option value="feature_match">feature_match</option>
+                            <option value="off">off</option>
+                        </select>
+                    </label>
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.earlyEmitConfidence')}</span>
+                        <select value={form.toolcall.early_emit_confidence} onChange={(e) => setForm((prev) => ({ ...prev, toolcall: { ...prev.toolcall, early_emit_confidence: e.target.value } }))} className="w-full bg-background border border-border rounded-lg px-3 py-2">
+                            <option value="high">high</option>
+                            <option value="low">low</option>
+                            <option value="off">off</option>
+                        </select>
+                    </label>
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.responsesTTL')}</span>
+                        <input type="number" min={30} value={form.responses.store_ttl_seconds} onChange={(e) => setForm((prev) => ({ ...prev, responses: { ...prev.responses, store_ttl_seconds: Number(e.target.value || 30) } }))} className="w-full bg-background border border-border rounded-lg px-3 py-2" />
+                    </label>
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.embeddingsProvider')}</span>
+                        <input type="text" value={form.embeddings.provider} onChange={(e) => setForm((prev) => ({ ...prev, embeddings: { ...prev.embeddings, provider: e.target.value } }))} className="w-full bg-background border border-border rounded-lg px-3 py-2" />
+                    </label>
+                </div>
+            </div>
+
+            <div className="bg-card border border-border rounded-xl p-5 space-y-4">
+                <h3 className="font-semibold">{t('settings.modelTitle')}</h3>
+                <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.claudeMapping')}</span>
+                        <textarea value={form.claude_mapping_text} onChange={(e) => setForm((prev) => ({ ...prev, claude_mapping_text: e.target.value }))} rows={8} className="w-full bg-background border border-border rounded-lg px-3 py-2 font-mono text-xs" />
+                    </label>
+                    <label className="text-sm space-y-2">
+                        <span className="text-muted-foreground">{t('settings.modelAliases')}</span>
+                        <textarea value={form.model_aliases_text} onChange={(e) => setForm((prev) => ({ ...prev, model_aliases_text: e.target.value }))} rows={8} className="w-full bg-background border border-border rounded-lg px-3 py-2 font-mono text-xs" />
+                    </label>
+                </div>
+            </div>
+
+            <div className="bg-card border border-border rounded-xl p-5 space-y-4">
+                <h3 className="font-semibold">{t('settings.backupTitle')}</h3>
+                <div className="flex flex-wrap items-center gap-3">
+                    <button type="button" onClick={loadExportData} className="px-3 py-2 rounded-lg bg-secondary border border-border hover:bg-secondary/80 text-sm flex items-center gap-2">
+                        <Download className="w-4 h-4" />
+                        {t('settings.loadExport')}
+                    </button>
+                    <select value={importMode} onChange={(e) => setImportMode(e.target.value)} className="bg-background border border-border rounded-lg px-3 py-2 text-sm">
+                        <option value="merge">{t('settings.importModeMerge')}</option>
+                        <option value="replace">{t('settings.importModeReplace')}</option>
+                    </select>
+                    <button type="button" onClick={doImport} disabled={importing} className="px-3 py-2 rounded-lg bg-secondary border border-border hover:bg-secondary/80 text-sm flex items-center gap-2">
+                        <Upload className="w-4 h-4" />
+                        {importing ? t('settings.importing') : t('settings.importNow')}
+                    </button>
+                </div>
+                <textarea value={importText} onChange={(e) => setImportText(e.target.value)} rows={8} className="w-full bg-background border border-border rounded-lg px-3 py-2 font-mono text-xs" placeholder={t('settings.importPlaceholder')} />
+                {exportData && (
+                    <div className="space-y-2">
+                        <label className="text-sm text-muted-foreground">{t('settings.exportJson')}</label>
+                        <textarea value={exportData.json || ''} readOnly rows={6} className="w-full bg-background border border-border rounded-lg px-3 py-2 font-mono text-xs" />
+                    </div>
+                )}
+            </div>
+
+            <div className="flex justify-end">
+                <button type="button" onClick={saveSettings} disabled={loading || saving} className="px-4 py-2 rounded-lg bg-primary text-primary-foreground hover:bg-primary/90 flex items-center gap-2">
+                    <Save className="w-4 h-4" />
+                    {saving ? t('settings.saving') : t('settings.save')}
+                </button>
+            </div>
+        </div>
+    )
+}

webui/src/locales/en.json

@@ -20,6 +20,10 @@
         "vercel": {
             "label": "Vercel Sync",
             "desc": "Sync configuration to Vercel"
+        },
+        "settings": {
+            "label": "Settings",
+            "desc": "Edit runtime and security settings online"
         }
     },
     "sidebar": {
@@ -192,6 +196,51 @@
         "importComplete": "Import complete",
         "importSummary": "Imported {keys} API keys and updated {accounts} accounts."
     },
+    "settings": {
+        "loadFailed": "Failed to load settings.",
+        "save": "Save settings",
+        "saving": "Saving...",
+        "saveSuccess": "Settings saved and hot reloaded.",
+        "saveFailed": "Failed to save settings.",
+        "securityTitle": "Security",
+        "jwtExpireHours": "JWT expiry (hours)",
+        "newPassword": "New admin password",
+        "newPasswordPlaceholder": "Enter new password (min 4 chars)",
+        "updatePassword": "Update password",
+        "updating": "Updating...",
+        "passwordTooShort": "Password must be at least 4 characters.",
+        "passwordUpdated": "Password updated. Please sign in again.",
+        "passwordUpdateFailed": "Failed to update password.",
+        "runtimeTitle": "Concurrency & Queue",
+        "accountMaxInflight": "Per-account max inflight",
+        "accountMaxQueue": "Account max queue size",
+        "globalMaxInflight": "Global max inflight",
+        "behaviorTitle": "Behavior",
+        "toolcallMode": "Toolcall mode",
+        "earlyEmitConfidence": "Early emit confidence",
+        "responsesTTL": "Responses store TTL (seconds)",
+        "embeddingsProvider": "Embeddings provider",
+        "modelTitle": "Model mapping",
+        "claudeMapping": "Claude mapping (JSON)",
+        "modelAliases": "Model aliases (JSON)",
+        "backupTitle": "Backup & Restore",
+        "loadExport": "Load current export",
+        "importModeMerge": "Merge import (default)",
+        "importModeReplace": "Replace all import",
+        "importNow": "Import now",
+        "importing": "Importing...",
+        "importPlaceholder": "Paste config JSON to import",
+        "importEmpty": "Please input import JSON.",
+        "importInvalidJson": "Import JSON is invalid.",
+        "importFailed": "Import failed.",
+        "importSuccess": "Config imported (mode: {mode}).",
+        "exportFailed": "Export failed.",
+        "exportLoaded": "Current export loaded.",
+        "exportJson": "Export JSON",
+        "invalidJsonField": "{field} is not a valid JSON object.",
+        "defaultPasswordWarning": "You are using the default admin password \"admin\". Please change it.",
+        "vercelSyncHint": "Configuration changed. For Vercel deployments, sync manually in Vercel Sync and redeploy."
+    },
     "login": {
         "welcome": "Welcome back",
         "subtitle": "Enter your admin key to continue",

webui/src/locales/zh.json

@@ -20,6 +20,10 @@
         "vercel": {
             "label": "Vercel 同步",
             "desc": "同步配置到 Vercel"
+        },
+        "settings": {
+            "label": "设置中心",
+            "desc": "在线修改系统设置与配置"
         }
     },
     "sidebar": {
@@ -192,6 +196,51 @@
         "importComplete": "导入操作已完成",
         "importSummary": "成功导入了 {keys} 个 API 密钥，并更新了 {accounts} 个账号。"
     },
+    "settings": {
+        "loadFailed": "加载设置失败",
+        "save": "保存设置",
+        "saving": "保存中...",
+        "saveSuccess": "设置已保存并热更新生效",
+        "saveFailed": "保存设置失败",
+        "securityTitle": "安全设置",
+        "jwtExpireHours": "JWT 有效期（小时）",
+        "newPassword": "面板新密码",
+        "newPasswordPlaceholder": "输入新密码（至少 4 位）",
+        "updatePassword": "修改密码",
+        "updating": "更新中...",
+        "passwordTooShort": "新密码至少 4 位",
+        "passwordUpdated": "密码已更新，需重新登录",
+        "passwordUpdateFailed": "密码更新失败",
+        "runtimeTitle": "并发与队列",
+        "accountMaxInflight": "每账号并发上限",
+        "accountMaxQueue": "账号等待队列上限",
+        "globalMaxInflight": "全局并发上限",
+        "behaviorTitle": "行为设置",
+        "toolcallMode": "Toolcall 模式",
+        "earlyEmitConfidence": "早发置信度",
+        "responsesTTL": "Responses 缓存 TTL（秒）",
+        "embeddingsProvider": "Embeddings Provider",
+        "modelTitle": "模型映射",
+        "claudeMapping": "Claude 映射（JSON）",
+        "modelAliases": "模型别名（JSON）",
+        "backupTitle": "备份与恢复",
+        "loadExport": "加载当前导出",
+        "importModeMerge": "合并导入（默认）",
+        "importModeReplace": "全量覆盖导入",
+        "importNow": "立即导入",
+        "importing": "导入中...",
+        "importPlaceholder": "粘贴要导入的 JSON 配置",
+        "importEmpty": "请先输入导入 JSON",
+        "importInvalidJson": "导入 JSON 格式无效",
+        "importFailed": "导入失败",
+        "importSuccess": "配置导入成功（模式：{mode}）",
+        "exportFailed": "导出失败",
+        "exportLoaded": "已加载当前配置导出",
+        "exportJson": "导出 JSON",
+        "invalidJsonField": "{field} 不是有效 JSON 对象",
+        "defaultPasswordWarning": "当前使用默认密码 admin，请尽快在此修改。",
+        "vercelSyncHint": "当前配置已更新。Vercel 部署请到 Vercel 同步页面手动同步并重部署。"
+    },
     "login": {
         "welcome": "欢迎回来",
         "subtitle": "请输入管理员密钥以继续",