fix(app): 18 处 catch(e) 添加 debugPrint 异常日志

- parent_bloc: 6 处 (LoadChildren/BindChild/ViewJournals/ExportData/DeleteData/UnbindChild)
- search_bloc: 3 处 (SearchByMood/SearchByTag/SearchByKeyword)
- achievement_bloc: 1 处 (_fetchAchievements)
- sticker_bloc: 2 处 (_fetchPacks/fetchStickersInPack)
- template_bloc: 1 处 (_fetchTemplates)
- mood_bloc: 1 处 (_loadStats)
- home_bloc: 1 处 (_onLoadData)
- calendar_bloc: 1 处 (_onMonthChanged)
- sync_engine: 1 处 (trySync)
- weekly_page: 已有 debugPrint，无需修改

app/lib/data/services/sync_engine.dart

@@ -196,6 +196,7 @@ class SyncEngine {
         _lastError = '同步中断：网络不可用';
         return;
       } catch (e) {
+        debugPrint('SyncEngine.trySync 操作失败: $e');
         // 操作失败，增加重试计数
         final retried = operation.copyWith(retryCount: operation.retryCount + 1);
 

app/lib/features/achievement/bloc/achievement_bloc.dart

@@ -1,5 +1,6 @@
 // 成就 BLoC — 通过 API 加载成就列表
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:nuanji_app/data/remote/api_client.dart';
 
@@ -98,6 +99,7 @@ class AchievementBloc extends ChangeNotifier {
 
       _state = _state.copyWith(isLoading: false, achievements: achievements);
     } catch (e) {
+      debugPrint('AchievementBloc._fetchAchievements 失败: $e');
       _state = _state.copyWith(
         isLoading: false,
         errorMessage: '加载成就列表失败',

app/lib/features/calendar/bloc/calendar_bloc.dart

@@ -1,5 +1,6 @@
 // 日历 BLoC — 管理日历视图状态，通过 JournalRepository 加载数据
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:nuanji_app/data/models/journal_entry.dart';
 import 'package:nuanji_app/data/repositories/journal_repository.dart';
@@ -136,6 +137,7 @@ class CalendarBloc extends Bloc<CalendarEvent, CalendarState> {
         ));
       }
     } catch (e) {
+      debugPrint('CalendarBloc._onMonthChanged 失败: $e');
       if (state is CalendarLoaded) {
         emit((state as CalendarLoaded).copyWith(isLoading: false));
       }

app/lib/features/home/bloc/home_bloc.dart

@@ -1,5 +1,6 @@
 // 首页 BLoC — 加载最近日记和心情概览
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:nuanji_app/data/models/journal_entry.dart';
 import 'package:nuanji_app/data/repositories/journal_repository.dart';
@@ -141,6 +142,7 @@ class HomeBloc extends Bloc<HomeEvent, HomeState> {
         todayWeather: todayWeather,
       ));
     } catch (e) {
+      debugPrint('HomeBloc._onLoadData 失败: $e');
       emit(const HomeLoaded()); // 空状态而非错误，离线友好
     }
   }

app/lib/features/mood/bloc/mood_bloc.dart

@@ -138,6 +138,7 @@ class MoodBloc extends ChangeNotifier {
         ),
       );
     } catch (e) {
+      debugPrint('MoodBloc._loadStats 失败: $e');
       _state = _state.copyWith(
         isLoading: false,
         errorMessage: '加载统计数据失败',

app/lib/features/parent/bloc/parent_bloc.dart

@@ -3,6 +3,7 @@
 // 状态机: ParentInitial → ParentLoading → ParentChildrenLoaded / ParentJournalsLoaded / ParentDataExported / ParentDataDeleted / ParentError
 // API: /diary/parent/* 端点
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 
 import '../../../data/remote/api_client.dart';
@@ -40,6 +41,7 @@ class ParentBloc extends Bloc<ParentEvent, ParentState> {
           .toList();
       emit(ParentChildrenLoaded(children));
     } catch (e) {
+      debugPrint('ParentBloc._onLoadChildren 失败: $e');
       emit(const ParentError('加载孩子列表失败'));
     }
   }
@@ -57,6 +59,7 @@ class ParentBloc extends Bloc<ParentEvent, ParentState> {
       // 绑定成功后重新加载列表
       add(const ParentLoadChildren());
     } catch (e) {
+      debugPrint('ParentBloc._onBindChild 失败: $e');
       emit(const ParentError('绑定失败，请检查孩子 ID'));
     }
   }
@@ -83,6 +86,7 @@ class ParentBloc extends Bloc<ParentEvent, ParentState> {
         journals: items.cast<Map<String, dynamic>>(),
       ));
     } catch (e) {
+      debugPrint('ParentBloc._onViewJournals 失败: $e');
       emit(const ParentError('加载日记失败'));
     }
   }
@@ -103,6 +107,7 @@ class ParentBloc extends Bloc<ParentEvent, ParentState> {
         data: response.data as Map<String, dynamic>,
       ));
     } catch (e) {
+      debugPrint('ParentBloc._onExportData 失败: $e');
       emit(const ParentError('导出失败'));
     }
   }
@@ -119,6 +124,7 @@ class ParentBloc extends Bloc<ParentEvent, ParentState> {
       });
       emit(ParentDataDeleted(event.childId));
     } catch (e) {
+      debugPrint('ParentBloc._onDeleteData 失败: $e');
       emit(const ParentError('删除失败'));
     }
   }
@@ -134,6 +140,7 @@ class ParentBloc extends Bloc<ParentEvent, ParentState> {
       });
       add(const ParentLoadChildren());
     } catch (e) {
+      debugPrint('ParentBloc._onUnbindChild 失败: $e');
       emit(const ParentError('解绑失败'));
     }
   }

app/lib/features/search/bloc/search_bloc.dart

@@ -3,6 +3,7 @@
 // 状态机: SearchInitial → SearchLoading → SearchLoaded/SearchError
 // 支持关键词搜索、标签筛选、心情筛选、结果分类 tab。
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 
 import '../../../data/models/journal_entry.dart';
@@ -50,6 +51,7 @@ class SearchBloc extends Bloc<SearchEvent, SearchState> {
         searchHistory: List.unmodifiable(_searchHistory),
       ));
     } catch (e) {
+      debugPrint('SearchBloc._onSearchByMood 失败: $e');
       emit(const SearchError('搜索失败，请重试'));
     }
   }
@@ -73,6 +75,7 @@ class SearchBloc extends Bloc<SearchEvent, SearchState> {
         searchHistory: List.unmodifiable(_searchHistory),
       ));
     } catch (e) {
+      debugPrint('SearchBloc._onSearchByTag 失败: $e');
       emit(const SearchError('搜索失败，请重试'));
     }
   }
@@ -113,6 +116,7 @@ class SearchBloc extends Bloc<SearchEvent, SearchState> {
         searchHistory: List.unmodifiable(_searchHistory),
       ));
     } catch (e) {
+      debugPrint('SearchBloc._onSearchByKeyword 失败: $e');
       emit(const SearchError('搜索失败，请重试'));
     }
   }

app/lib/features/stickers/bloc/sticker_bloc.dart

@@ -1,5 +1,6 @@
 // 贴纸 BLoC — 通过 API 加载贴纸包和贴纸数据
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:nuanji_app/data/remote/api_client.dart';
 
@@ -168,6 +169,7 @@ class StickerBloc extends ChangeNotifier {
 
       _state = _state.copyWith(isLoading: false, packs: packs);
     } catch (e) {
+      debugPrint('StickerBloc._fetchPacks 失败: $e');
       _state = _state.copyWith(
         isLoading: false,
         errorMessage: '加载贴纸包失败',
@@ -194,6 +196,7 @@ class StickerBloc extends ChangeNotifier {
         );
       }).toList();
     } catch (e) {
+      debugPrint('StickerBloc.fetchStickersInPack 失败: $e');
       return [];
     }
   }

app/lib/features/templates/bloc/template_bloc.dart

@@ -1,5 +1,6 @@
 // 模板 BLoC — 通过 API 加载模板列表
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:nuanji_app/data/remote/api_client.dart';
 
@@ -125,6 +126,7 @@ class TemplateBloc extends ChangeNotifier {
 
       _state = _state.copyWith(isLoading: false, templates: templates);
     } catch (e) {
+      debugPrint('TemplateBloc._fetchTemplates 失败: $e');
       _state = _state.copyWith(
         isLoading: false,
         errorMessage: '加载模板列表失败',