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/features/calendar/views/monthly_page.dart

@@ -50,7 +50,8 @@ class _MonthlyPageState extends State<MonthlyPage> {
       try {
         final elements = await _repo.getElements(journal.id);
         photoCount += elements.where((e) => e.elementType == ElementType.image).length;
-      } catch (_) {
+      } catch (e) {
+        debugPrint('MonthlyPage: 加载日记 ${journal.id} 元素失败: $e');
         // 单个日记加载元素失败不影响整体统计
       }
     }

app/lib/features/calendar/views/weekly_page.dart

@@ -56,7 +56,8 @@ class _WeeklyPageState extends State<WeeklyPage> {
           _isLoading = false;
         });
       }
-    } catch (_) {
+    } catch (e) {
+      debugPrint('WeeklyPage._loadWeekData 失败: $e');
       if (mounted) setState(() => _isLoading = false);
     }
   }