fix: Phase 1.3 完善修复 — 管理端对接 + HMS清理 + 编辑器加载

- feat(web): ClassList.tsx 对接 update/deactivate/reset-code API
  - 编辑班级: PUT /diary/classes/:id
  - 停用班级: PATCH /diary/classes/:id/deactivate (Popconfirm 确认)
  - 重置班级码: POST /diary/classes/:id/reset-code (Popconfirm 确认)
  - 数据源改用 listAll() 获取所有班级
- fix(web): JournalList.tsx 班级筛选改用 classApi.listAll()
- fix(app): EditorPage 加载已有日记数据 (journalId 非空时)
  - 从 Isar 恢复笔画/元素/标签/心情/标题
  - _EditorView 改为 StatefulWidget + initState 加载
- chore(web): HMS 遗留代码清理
  - 删除 api/copilot.ts, healthFixtures.ts, healthHandlers.ts
  - AuditLogViewer 资源类型替换为日记模块类型
  - auth.test.ts / renderWithProviders 权限码 health.* → diary.*
- docs: 确认 M6 NotificationService 为误报 (已在 3 处调用)

app/lib/features/editor/views/editor_page.dart

@@ -254,7 +254,7 @@ class EditorPage extends StatelessWidget {
   }
 }
 
-class _EditorView extends StatelessWidget {
+class _EditorView extends StatefulWidget {
   final String? journalId;
   final String? templateId;
   final String? savedJournalId;
@@ -269,6 +269,67 @@ class _EditorView extends StatelessWidget {
     required this.onSaveComplete,
   });
 
+  @override
+  State<_EditorView> createState() => _EditorViewState();
+}
+
+class _EditorViewState extends State<_EditorView> {
+  @override
+  void initState() {
+    super.initState();
+    // 当 journalId 非空时，从 Isar 加载已有日记数据
+    if (widget.journalId != null) {
+      _loadExistingJournal(widget.journalId!);
+    }
+  }
+
+  /// 从 Isar 加载已有日记的笔画、元素、标签、心情、标题
+  Future<void> _loadExistingJournal(String id) async {
+    try {
+      // 加载日记元数据
+      final entry = await widget.repo.getJournal(id);
+      if (entry == null || !mounted) return;
+
+      final bloc = context.read<EditorBloc>();
+
+      // 加载标题和心情
+      bloc.add(TitleChanged(entry.title));
+      bloc.add(MoodChanged(entry.mood));
+
+      // 加载标签
+      if (entry.tags.isNotEmpty) {
+        bloc.add(TagsLoaded(entry.tags));
+      }
+
+      // 加载元素（含笔画）
+      final elements = await widget.repo.getElements(id);
+      if (!mounted) return;
+
+      for (final element in elements) {
+        if (element.elementType == ElementType.handwritingRef) {
+          // 从 handwriting_ref 元素中恢复笔画
+          final strokesData = element.content['strokes'];
+          if (strokesData is List) {
+            final strokes = strokesData
+                .map((s) => Stroke.fromJson(s as Map<String, dynamic>))
+                .toList();
+            bloc.add(StrokesLoaded(strokes));
+          }
+        }
+      }
+
+      // 加载非笔画元素（贴纸/文字/图片）
+      final nonStrokeElements = elements
+          .where((e) => e.elementType != ElementType.handwritingRef)
+          .toList();
+      if (nonStrokeElements.isNotEmpty) {
+        bloc.add(ElementsLoaded(nonStrokeElements));
+      }
+    } catch (e) {
+      debugPrint('加载日记数据失败: $e');
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
@@ -288,7 +349,7 @@ class _EditorView extends StatelessWidget {
           Expanded(
             child: BlocBuilder<EditorBloc, EditorState>(
               builder: (context, state) {
-                return _EditorStack(state: state, journalId: journalId);
+                return _EditorStack(state: state, journalId: widget.journalId);
               },
             ),
           ),
@@ -404,7 +465,7 @@ class _EditorView extends StatelessWidget {
 
   /// 保存处理
   void _handleSave(BuildContext context, EditorState state) {
-    onSaveComplete();
+    widget.onSaveComplete();
   }
 
   /// 格式化日期显示