fix: auto-save personalization toggle

static/app.js

@@ -260,6 +260,7 @@ async function bootstrapApp() {
                 personalizationStatus: '',
                 personalizationError: '',
                 personalizationMaxConsiderations: 10,
+                personalizationToggleUpdating: false,
                 overlayPressActive: false,
                 personalForm: {
                     enabled: false,
@@ -2197,6 +2198,42 @@ async function bootstrapApp() {
                 this.overlayPressActive = false;
             },
 
+            async handlePersonalizationToggle() {
+                if (this.personalizationToggleUpdating) {
+                    return;
+                }
+                const newValue = !!this.personalForm.enabled;
+                const previousValue = !newValue;
+                this.personalizationToggleUpdating = true;
+                this.personalizationStatus = '';
+                this.personalizationError = '';
+                try {
+                    const resp = await fetch('/api/personalization', {
+                        method: 'POST',
+                        headers: {
+                            'Content-Type': 'application/json'
+                        },
+                        body: JSON.stringify({ enabled: newValue })
+                    });
+                    const result = await resp.json();
+                    if (!resp.ok || !result.success) {
+                        throw new Error(result.error || '更新失败');
+                    }
+                    const statusLabel = newValue ? '已启用' : '已停用';
+                    this.personalizationStatus = statusLabel;
+                    setTimeout(() => {
+                        if (this.personalizationStatus === statusLabel) {
+                            this.personalizationStatus = '';
+                        }
+                    }, 2000);
+                } catch (error) {
+                    this.personalForm.enabled = previousValue;
+                    this.personalizationError = error.message || '更新失败';
+                } finally {
+                    this.personalizationToggleUpdating = false;
+                }
+            },
+
             async handleLogout() {
                 try {
                     const resp = await fetch('/logout', { method: 'POST' });

static/index.html

@@ -846,7 +846,8 @@
                                 <span class="toggle-switch">
                                     <input type="checkbox"
                                            v-model="personalForm.enabled"
-                                           @change="clearPersonalizationFeedback">
+                                           :disabled="personalizationToggleUpdating"
+                                           @change="handlePersonalizationToggle">
                                     <span class="switch-slider"></span>
                                 </span>
                             </label>