fix: 移除 FaceFilterSettings 重复字段，与 Rust 端结构一致

问题修正：
- 移除 FaceFilterSettings 中的重复字段
- 简化为三段式结构（ui_filter_rules, processing_thresholds, trace_settings）
- 新增 version 字段用于版本控制
- 删除 useFaceFilter.ts 中的 rules 变量
- 重命名 faceFilterSettings 为 settings
- 更新所有访问方式为 settings.value.ui_filter_rules.*

变更内容：
1. src/types/faceFilter.ts
   - FaceFilterSettings 只保留三段式结构
   - fromLegacy() 和 defaults() 不再返回重复字段

2. src/composables/useFaceFilter.ts
   - 删除 rules 变量（不再需要）
   - 删除 defaultRules 常量
   - 重命名 faceFilterSettings 为 settings
   - 更新 localStorage 逻辑保存完整 settings
   - 所有访问改为 settings.value.ui_filter_rules.*

3. src/components/FaceFilterPanel.vue
   - 更新 v-model 绑定为 settings.trace_settings.*
   - 更新解构，删除 rules
   - 更新所有访问为 settings.ui_filter_rules.*

测试：
- ✅ TypeScript 编译通过
- ✅ Vite build 成功

对应 Core API: 86c776ce
修正文档: docs/FACE_FILTER_TYPES_FIX_REQUIRED.md

src/components/FaceFilterPanel.vue

@@ -57,7 +57,7 @@
         <label>Confidence:</label>
         <input 
           type="number" 
-          v-model.number="rules.min_confidence"
+          v-model.number="settings.ui_filter_rules.min_confidence"
           @change="onRuleChange"
           min="0" 
           max="1" 
@@ -72,7 +72,7 @@
         <label>Bbox Size:</label>
         <input 
           type="number" 
-          v-model.number="rules.min_bbox_size"
+          v-model.number="settings.ui_filter_rules.min_bbox_size"
           @change="onRuleChange"
           min="0" 
           step="10"
@@ -84,7 +84,7 @@
       
       <div class="filter-row">
         <label>Source:</label>
-        <select v-model="rules.source" @change="onRuleChange" class="filter-select">
+        <select v-model="settings.ui_filter_rules.source" @change="onRuleChange" class="filter-select">
           <option value="all">All</option>
           <option value="apple_vision">Apple Vision</option>
           <option value="mediapipe">MediaPipe</option>
@@ -93,7 +93,7 @@
       
       <div class="filter-row">
         <label>Backend Status:</label>
-        <select v-model="rules.backend_status" @change="onRuleChange" class="filter-select">
+        <select v-model="settings.ui_filter_rules.backend_status" @change="onRuleChange" class="filter-select">
           <option value="all">All</option>
           <option value="accept">Accept</option>
           <option value="review">Review</option>
@@ -108,7 +108,7 @@
           <label class="checkbox-label">
             <input 
               type="checkbox" 
-              v-model="faceFilterSettings.single_frame_trace_vlm_enabled"
+              v-model="settings.trace_settings.single_frame_trace_vlm_enabled"
               @change="markModified"
             />
             VLM Processing
@@ -120,7 +120,7 @@
           <label class="checkbox-label">
             <input 
               type="checkbox" 
-              v-model="faceFilterSettings.single_frame_trace_group_enabled"
+              v-model="settings.trace_settings.single_frame_trace_group_enabled"
               @change="markModified"
             />
             Face Groups
@@ -132,7 +132,7 @@
           <label class="checkbox-label">
             <input 
               type="checkbox" 
-              v-model="faceFilterSettings.single_frame_trace_unassigned_enabled"
+              v-model="settings.trace_settings.single_frame_trace_unassigned_enabled"
               @change="markModified"
             />
             Unassigned List
@@ -144,7 +144,7 @@
           <label class="checkbox-label">
             <input 
               type="checkbox" 
-              v-model="faceFilterSettings.single_trace_group_filter_enabled"
+              v-model="settings.trace_settings.single_trace_group_filter_enabled"
               @change="markModified"
             />
             Single Trace Groups
@@ -154,19 +154,19 @@
         
         <div class="section-actions">
           <div class="auto-save-hint">
-            {{ faceFilterSettingsLoading ? '⏳ Saving...' : '✓ Auto-saved' }}
+            {{ settingsLoading ? '⏳ Saving...' : '✓ Auto-saved' }}
           </div>
           <button 
             class="action-btn"
             @click="handleResetSingleFrame"
-            :disabled="faceFilterSettingsLoading"
+            :disabled="settingsLoading"
           >
             Reset to Default
           </button>
         </div>
         
-        <div v-if="faceFilterSettingsError" class="error-message">
+        <div v-if="settingsError" class="error-message">
-          ❌ {{ faceFilterSettingsError }}
+          ❌ {{ settingsError }}
         </div>
       </div>
       
@@ -232,7 +232,6 @@ const emit = defineEmits<{
 
 const {
   mode,
-  rules,
   filterResult,
   filterStats,
   loading,
@@ -242,14 +241,14 @@ const {
   updateRules,
   applyBackendFilter,
   resetToDefault,
-  faceFilterSettings,
+  settings,
-  faceFilterSettingsLoading,
+  settingsLoading,
-  faceFilterSettingsError,
+  settingsError,
-  faceFilterSettingsModified,
+  settingsModified,
   loadSingleFrameSettings,
   resetSingleFrameSettings,
   markSingleFrameSettingsModified,
-  cleanupAutoSave
+  cleanupAutoSave,
 } = useFaceFilter();
 
 const showPanel = ref(false);
@@ -259,7 +258,7 @@ function togglePanel() {
 }
 
 function onRuleChange() {
-  updateRules(rules.value);
+  updateRules(settings.value.ui_filter_rules);
 }
 
 async function handleApplyBackend() {
@@ -291,7 +290,7 @@ watch(showPanel, (show) => {
   }
 });
 
-watch(faceFilterSettingsModified, (newVal, oldVal) => {
+watch(settingsModified, (newVal, oldVal) => {
   if (oldVal === true && newVal === false) {
     emit('settings-updated');
   }

src/composables/useFaceFilter.ts

@@ -97,13 +97,6 @@ export interface FileProfileResponse {
   face_filter: FaceFilterSettings;
 }
 
-const defaultRules: UiFilterRules = {
-  min_confidence: 0.5,
-  min_bbox_size: 80,
-  source: 'all',
-  backend_status: 'accept'
-};
-
 const STORAGE_KEY = 'momentry_face_filter_preferences';
 
 // API helpers
@@ -196,7 +189,7 @@ function hybridFilter(faces: FaceMetadata[], rules: UiFilterRules): FaceMetadata
 
 export function useFaceFilter() {
   const mode = ref<'instant' | 'backend' | 'hybrid'>('instant');
-  const rules = ref<UiFilterRules>({ ...defaultRules });
+  const settings = ref<FaceFilterSettings>(FaceFilterSettingsMigration.defaults());
   const allFaces = ref<FaceMetadata[]>([]);
   const filteredFaces = ref<FaceMetadata[]>([]);
   const filterResult = ref<FilterResult | null>(null);
@@ -204,10 +197,9 @@ export function useFaceFilter() {
   const loading = ref(false);
   const error = ref<string | null>(null);
   
-  const faceFilterSettings = ref<FaceFilterSettings>(FaceFilterSettingsMigration.defaults());
+  const settingsLoading = ref(false);
-  const faceFilterSettingsLoading = ref(false);
+  const settingsError = ref<string | null>(null);
-  const faceFilterSettingsError = ref<string | null>(null);
+  const settingsModified = ref(false);
-  const faceFilterSettingsModified = ref(false);
   
   const currentFileUuid = ref<string | null>(null);
   let autoSaveTimer: ReturnType<typeof setTimeout> | null = null;
@@ -219,26 +211,24 @@ export function useFaceFilter() {
     removed: allFaces.value.length - filteredFaces.value.length
   }));
   
-  // Load preferences from localStorage
   function loadPreferences() {
     try {
       const stored = localStorage.getItem(STORAGE_KEY);
       if (stored) {
         const prefs = JSON.parse(stored);
         mode.value = prefs.mode || 'instant';
-        rules.value = prefs.rules || { ...defaultRules };
+        settings.value = prefs.settings || FaceFilterSettingsMigration.defaults();
       }
     } catch (err) {
       console.error('Failed to load preferences:', err);
     }
   }
   
-  // Save preferences to localStorage
   function savePreferences() {
     try {
       localStorage.setItem(STORAGE_KEY, JSON.stringify({
         mode: mode.value,
-        rules: rules.value
+        settings: settings.value
       }));
     } catch (err) {
       console.error('Failed to save preferences:', err);
@@ -297,11 +287,10 @@ export function useFaceFilter() {
     });
   }
   
-  // Apply local filter based on mode
   function applyLocalFilter() {
     switch (mode.value) {
       case 'instant':
-        filteredFaces.value = quickFilter(allFaces.value, rules.value);
+        filteredFaces.value = quickFilter(allFaces.value, settings.value.ui_filter_rules);
         break;
       case 'backend':
         filteredFaces.value = allFaces.value.filter(face => 
@@ -309,13 +298,13 @@ export function useFaceFilter() {
         );
         break;
       case 'hybrid':
-        filteredFaces.value = hybridFilter(allFaces.value, rules.value);
+        filteredFaces.value = hybridFilter(allFaces.value, settings.value.ui_filter_rules);
         break;
     }
   }
   
 function updateRules(newRules: Partial<UiFilterRules>) {
-  rules.value = { ...rules.value, ...newRules };
+  settings.value.ui_filter_rules = { ...settings.value.ui_filter_rules, ...newRules };
   applyLocalFilter();
   savePreferences();
 }
@@ -371,52 +360,51 @@ function updateRules(newRules: Partial<UiFilterRules>) {
     }
   }
   
-  // Reset to default
   function resetToDefault() {
-    rules.value = { ...defaultRules };
+    settings.value = FaceFilterSettingsMigration.defaults();
     applyLocalFilter();
     savePreferences();
   }
   
 async function loadSingleFrameSettings(fileUuid: string) {
-  faceFilterSettingsLoading.value = true;
+  settingsLoading.value = true;
-  faceFilterSettingsError.value = null;
+  settingsError.value = null;
   
   try {
     currentFileUuid.value = fileUuid;
     const profile = await getFileProfile(fileUuid);
     
     if (profile.face_filter) {
-      faceFilterSettings.value = profile.face_filter;
+      settings.value = profile.face_filter;
     } else {
-      faceFilterSettings.value = FaceFilterSettingsMigration.defaults();
+      settings.value = FaceFilterSettingsMigration.defaults();
     }
     
-    faceFilterSettingsModified.value = false;
+    settingsModified.value = false;
   } catch (err: any) {
-    faceFilterSettingsError.value = err.message || 'Failed to load settings';
+    settingsError.value = err.message || 'Failed to load settings';
     console.error('Failed to load single frame settings:', err);
   } finally {
-    faceFilterSettingsLoading.value = false;
+    settingsLoading.value = false;
   }
 }
 
 async function saveSingleFrameSettings(fileUuid: string): Promise<boolean> {
-  faceFilterSettingsLoading.value = true;
+  settingsLoading.value = true;
-  faceFilterSettingsError.value = null;
+  settingsError.value = null;
   
   try {
-    const success = await updateFileProfile(fileUuid, faceFilterSettings.value);
+    const success = await updateFileProfile(fileUuid, settings.value);
     if (success) {
-      faceFilterSettingsModified.value = false;
+      settingsModified.value = false;
     }
     return success;
   } catch (err: any) {
-    faceFilterSettingsError.value = err.message || 'Failed to save settings';
+    settingsError.value = err.message || 'Failed to save settings';
     console.error('Failed to save single frame settings:', err);
     return false;
   } finally {
-    faceFilterSettingsLoading.value = false;
+    settingsLoading.value = false;
   }
 }
 
@@ -426,7 +414,7 @@ function autoSaveSettings() {
   }
   
   autoSaveTimer = setTimeout(async () => {
-    if (currentFileUuid.value && faceFilterSettingsModified.value) {
+    if (currentFileUuid.value && settingsModified.value) {
       const success = await saveSingleFrameSettings(currentFileUuid.value);
       if (!success) {
         console.error('Auto-save failed for single frame settings');
@@ -444,19 +432,18 @@ function cleanupAutoSave() {
 }
 
 function resetSingleFrameSettings() {
-  faceFilterSettings.value = FaceFilterSettingsMigration.defaults();
+  settings.value = FaceFilterSettingsMigration.defaults();
-  faceFilterSettingsModified.value = true;
+  settingsModified.value = true;
   autoSaveSettings();
 }
 
 function markSingleFrameSettingsModified() {
-  faceFilterSettingsModified.value = true;
+  settingsModified.value = true;
   autoSaveSettings();
 }
   
 return {
   mode,
-  rules,
   allFaces,
   filteredFaces,
   filterResult,
@@ -464,10 +451,10 @@ return {
   loading,
   error,
   stats,
-  faceFilterSettings,
+  settings,
-  faceFilterSettingsLoading,
+  settingsLoading,
-  faceFilterSettingsError,
+  settingsError,
-  faceFilterSettingsModified,
+  settingsModified,
   currentFileUuid,
   
   initialize,

src/types/faceFilter.ts

@@ -63,21 +63,10 @@ export interface TraceSettings {
  * - 新增字段: max_confidence, max_bbox_size, source, backend_status
  */
 export interface FaceFilterSettings {
+  version?: string;
   ui_filter_rules: UiFilterRules;
   processing_thresholds: ProcessingThresholds;
   trace_settings: TraceSettings;
-  
-  min_confidence: number;
-  max_confidence?: number;
-  min_bbox_size: number;
-  max_bbox_size?: number;
-  source?: string;
-  backend_status?: string;
-  
-  single_frame_trace_vlm_enabled: boolean;
-  single_frame_trace_group_enabled: boolean;
-  single_frame_trace_unassigned_enabled: boolean;
-  single_trace_group_filter_enabled: boolean;
 }
 
 /**
@@ -142,24 +131,16 @@ export class FaceFilterSettingsMigration {
     };
     
     return {
+      version: "1.0",
       ui_filter_rules: uiFilterRules,
       processing_thresholds: processingThresholds,
       trace_settings: traceSettings,
-      min_confidence: minConf,
-      max_confidence: maxConf,
-      min_bbox_size: legacy.min_bbox_size ?? 80,
-      max_bbox_size: legacy.max_bbox_size,
-      source: legacy.source,
-      backend_status: legacy.backend_status,
-      single_frame_trace_vlm_enabled: traceSettings.single_frame_trace_vlm_enabled,
-      single_frame_trace_group_enabled: traceSettings.single_frame_trace_group_enabled,
-      single_frame_trace_unassigned_enabled: traceSettings.single_frame_trace_unassigned_enabled,
-      single_trace_group_filter_enabled: traceSettings.single_trace_group_filter_enabled,
     };
   }
   
   static defaults(): FaceFilterSettings {
     return {
+      version: "1.0",
       ui_filter_rules: {
         min_confidence: 0.5,
         min_bbox_size: 80,
@@ -174,12 +155,6 @@ export class FaceFilterSettingsMigration {
         single_frame_trace_unassigned_enabled: true,
         single_trace_group_filter_enabled: true,
       },
-      min_confidence: 0.5,
-      min_bbox_size: 80,
-      single_frame_trace_vlm_enabled: true,
-      single_frame_trace_group_enabled: true,
-      single_frame_trace_unassigned_enabled: true,
-      single_trace_group_filter_enabled: true,
     };
   }
 }