feat: Implement DeepSeek integration, refactor model adapters for streaming and tool calls, enhance admin and account management, and introduce new UI features for settings, API testing, and Vercel sync.

internal/admin/handler_accounts_queue.go

@@ -0,0 +1,7 @@
+package admin
+
+import "net/http"
+
+func (h *Handler) queueStatus(w http.ResponseWriter, _ *http.Request) {
+	writeJSON(w, http.StatusOK, h.Pool.Status())
+}