feat: 实现日历提醒完整功能（操作执行、通知服务重构、归档）

- 新增 ReminderActionExecutor 处理取消/稍后提醒操作
- 新增 ReminderOutboxStore 本地存储待处理操作
- 重构 LocalNotificationService 支持聚合提醒和交互操作
- 新增 event_color_resolver 工具类统一颜色解析
- 新增 CalendarService.archiveEvent 归档方法
- 增强 ModelTracking 支持缓存命中、推理token和成本追踪
- 添加 qwen3.5-35b-a3b 模型配置
- 更新 AndroidManifest 全屏intent权限
- 补充相关单元测试和文档

apps/lib/features/calendar/ui/screens/calendar_dayweek_screen.dart

@@ -9,6 +9,7 @@ import '../../data/models/schedule_item_model.dart';
 import '../../data/services/calendar_service.dart';
 import '../calendar_state_manager.dart';
 import '../calendar_time_utils.dart';
+import '../utils/event_color_resolver.dart';
 import '../dayweek/day_event_layout_engine.dart';
 import '../dayweek/day_timeline_metrics.dart';
 import '../dayweek/day_view_scale.dart';
@@ -614,7 +615,10 @@ class _CalendarDayWeekScreenState extends State<CalendarDayWeekScreen>
     required DayEventLayout layout,
     required double boardHeight,
   }) {
-    final eventColor = _parseColor(layout.event.metadata?.color);
+    final eventColor = resolveEventColor(
+      status: layout.event.status,
+      colorHex: layout.event.metadata?.color,
+    );
     final isCompact = layout.visualHeight < 20;
     final tapHeight = layout.visualHeight < _minEventTapHeight
         ? _minEventTapHeight
@@ -687,17 +691,6 @@ class _CalendarDayWeekScreenState extends State<CalendarDayWeekScreen>
     );
   }
 
-  Color _parseColor(String? hex) {
-    if (hex == null || hex.isEmpty) {
-      return AppColors.blue600;
-    }
-    try {
-      return Color(int.parse(hex.replaceFirst('#', '0xFF')));
-    } catch (_) {
-      return AppColors.blue600;
-    }
-  }
-
   Widget _buildBottomDock() {
     return BottomDock(
       activeTab: DockTab.calendar,

apps/lib/features/calendar/ui/screens/calendar_event_detail_screen.dart

@@ -10,6 +10,7 @@ import '../../../../shared/widgets/detail_header_action_menu.dart';
 import '../../../../shared/widgets/destructive_action_sheet.dart';
 import '../../data/services/calendar_service.dart';
 import '../../data/models/schedule_item_model.dart';
+import '../utils/event_color_resolver.dart';
 import '../widgets/create_event_sheet.dart';
 import '../widgets/calendar_share_dialog.dart';
 
@@ -223,7 +224,7 @@ class _CalendarEventDetailScreenState extends State<CalendarEventDetailScreen> {
                   _formatReminderText(event.metadata?.reminderMinutes),
                 ),
                 const SizedBox(height: 14),
-                _buildColorField(event.metadata?.color),
+                _buildColorField(event),
                 const SizedBox(height: 14),
                 if (event.metadata?.location != null) ...[
                   _buildDetailField('地点', event.metadata!.location!),
@@ -275,7 +276,10 @@ class _CalendarEventDetailScreenState extends State<CalendarEventDetailScreen> {
                 width: 4,
                 height: 20,
                 decoration: BoxDecoration(
-                  color: _parseColor(event.metadata?.color),
+                  color: resolveEventColor(
+                    status: event.status,
+                    colorHex: event.metadata?.color,
+                  ),
                   borderRadius: BorderRadius.circular(2),
                 ),
               ),
@@ -343,8 +347,11 @@ class _CalendarEventDetailScreenState extends State<CalendarEventDetailScreen> {
     );
   }
 
-  Widget _buildColorField(String? colorHex) {
-    final color = _parseColor(colorHex);
+  Widget _buildColorField(ScheduleItemModel event) {
+    final color = resolveEventColor(
+      status: event.status,
+      colorHex: event.metadata?.color,
+    );
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
@@ -400,15 +407,6 @@ class _CalendarEventDetailScreenState extends State<CalendarEventDetailScreen> {
     );
   }
 
-  Color _parseColor(String? hex) {
-    if (hex == null || hex.isEmpty) return AppColors.blue600;
-    try {
-      return Color(int.parse(hex.replaceFirst('#', '0xFF')));
-    } catch (_) {
-      return AppColors.blue600;
-    }
-  }
-
   Widget _buildInputContainer() {
     return Container(
       height: 80,

apps/lib/features/calendar/ui/screens/calendar_month_screen.dart

@@ -7,6 +7,7 @@ import '../../../../core/theme/design_tokens.dart';
 import '../../../../shared/widgets/app_pressable.dart';
 import '../calendar_state_manager.dart';
 import '../calendar_time_utils.dart';
+import '../utils/event_color_resolver.dart';
 import '../widgets/bottom_dock.dart';
 import '../widgets/create_event_sheet.dart';
 import '../../data/models/schedule_item_model.dart';
@@ -360,7 +361,10 @@ class _CalendarMonthScreenState extends State<CalendarMonthScreen>
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 ...displayEvents.map((event) {
-                  final color = _parseColor(event.metadata?.color);
+                  final color = resolveEventColor(
+                    status: event.status,
+                    colorHex: event.metadata?.color,
+                  );
                   return AppPressable(
                     borderRadius: BorderRadius.circular(AppRadius.sm),
                     onTap: () {
@@ -415,15 +419,6 @@ class _CalendarMonthScreenState extends State<CalendarMonthScreen>
     );
   }
 
-  Color _parseColor(String? hex) {
-    if (hex == null || hex.isEmpty) return AppColors.blue600;
-    try {
-      return Color(int.parse(hex.replaceFirst('#', '0xFF')));
-    } catch (_) {
-      return AppColors.blue600;
-    }
-  }
-
   void _showMonthPicker() {
     var selectedYear = _currentMonth.year;
     var selectedMonth = _currentMonth.month;

apps/lib/features/calendar/ui/utils/event_color_resolver.dart

@@ -0,0 +1,23 @@
+import 'package:flutter/material.dart';
+
+import '../../../../core/theme/design_tokens.dart';
+import '../../data/models/schedule_item_model.dart';
+
+Color resolveEventColor({
+  required ScheduleStatus status,
+  required String? colorHex,
+}) {
+  if (status == ScheduleStatus.archived) {
+    return AppColors.slate400;
+  }
+
+  if (colorHex == null || colorHex.isEmpty) {
+    return AppColors.blue600;
+  }
+
+  try {
+    return Color(int.parse(colorHex.replaceFirst('#', '0xFF')));
+  } catch (_) {
+    return AppColors.blue600;
+  }
+}

apps/lib/features/calendar/ui/widgets/create_event_sheet.dart

@@ -669,9 +669,9 @@ class _CreateEventSheetState extends State<CreateEventSheet>
       try {
         final notificationService = sl<LocalNotificationService>();
         await notificationService.upsertEventReminder(saved);
-      } catch (e) {
+      } catch (_) {
         if (mounted) {
-          Toast.show(context, '提醒创建失败：$e', type: ToastType.warning);
+          Toast.show(context, '提醒创建失败，请检查通知权限', type: ToastType.warning);
         }
       }