强制启用文件拆分（实际模型忽略）

webui/src/features/settings/HistorySplitSection.jsx

@@ -9,15 +9,10 @@ export default function HistorySplitSection({ t, form, setForm }) {
                 <label className="flex items-start gap-3 rounded-lg border border-border bg-background/60 p-4">
                     <input
                         type="checkbox"
-                        checked={Boolean(form.history_split?.enabled ?? true)}
-                        onChange={(e) => setForm((prev) => ({
-                            ...prev,
-                            history_split: {
-                                ...prev.history_split,
-                                enabled: e.target.checked,
-                            },
-                        }))}
-                        className="mt-1 h-4 w-4 rounded border-border"
+                        checked
+                        disabled
+                        readOnly
+                        className="mt-1 h-4 w-4 rounded border-border disabled:opacity-70"
                     />
                     <div className="space-y-1">
                         <span className="text-sm font-medium block">{t('settings.historySplitEnabled')}</span>

webui/src/features/settings/useSettingsForm.js

@@ -71,7 +71,7 @@ function fromServerForm(data) {
             mode: normalizeAutoDeleteMode(data.auto_delete),
         },
         history_split: {
-            enabled: data.history_split?.enabled ?? true,
+            enabled: true,
             trigger_after_turns: Number(data.history_split?.trigger_after_turns || 1),
         },
         model_aliases_text: JSON.stringify(data.model_aliases || {}, null, 2),
@@ -94,7 +94,7 @@ function toServerPayload(form) {
         embeddings: { provider: String(form.embeddings.provider || '').trim() },
         auto_delete: { mode: normalizeAutoDeleteMode(form.auto_delete) },
         history_split: {
-            enabled: Boolean(form.history_split?.enabled ?? true),
+            enabled: true,
             trigger_after_turns: Number(form.history_split?.trigger_after_turns || 1),
         },
     }