fix(app): Phase 1.1 紧急修复 — SyncEngine 接入 + authorId + catch 异常处理

- feat(sync): SyncEngine 接入 EditorPage, 保存时 enqueue + 网络恢复自动 trySync
- fix(editor): authorId 从 AuthBloc 获取, 替代硬编码 'local'
- fix(bloc): class_bloc/calendar/profile/parent catch(_).全部改为 debugPrint
- feat(editor): 编辑器工具栏拆分 (brush_panel/tag_panel/text_format_bar/dot_grid_painter)
- feat(editor): EditorBloc 扩展 + EditorPage 增强
- feat(search): SearchBloc 扩展搜索功能
- feat(home): HomeBloc/HomePage 增强
- feat(auth): LoginPage 增强
- feat(templates): TemplateGalleryPage 重构
- fix(web): 管理端班级/日记页面修复
- fix(server): comment_service + theme_handler 修复
- docs: 添加全链路审计报告和验证截图

app/lib/data/local/collections/journal_element_collection.g.dart

@@ -16,7 +16,7 @@ extension GetJournalElementCollectionCollection on Isar {
 
 const JournalElementCollectionSchema = CollectionSchema(
   name: r'JournalElementCollection',
-  id: 5678901234567001,
+  id: -1002,
   properties: {
     r'contentJson': PropertySchema(
       id: 0,
@@ -96,7 +96,7 @@ const JournalElementCollectionSchema = CollectionSchema(
   idName: r'isarId',
   indexes: {
     r'id': IndexSchema(
-      id: 5678901234567002,
+      id: -2002,
       name: r'id',
       unique: false,
       replace: false,
@@ -109,7 +109,7 @@ const JournalElementCollectionSchema = CollectionSchema(
       ],
     ),
     r'journalId': IndexSchema(
-      id: 5678901234567003,
+      id: 3001,
       name: r'journalId',
       unique: false,
       replace: false,