fix: 修复 reminder_times 处理和 UTC 时间存储

- server: 处理 reminder_times 更新时支持 null 值
- client: 统一使用 UTC 格式存储日期时间
- client: 修复 calculateNextDueDate 使用 UTC 时间计算
- client: 修复 calculateReminderTimes 使用 UTC 时间计算
- client: 修复 getReminderValueFromTimes 反推提醒选项
- client: 重写 createNextRecurringEventData 根据新日期重新计算 reminder_times
- 解决用户设置"14:00"显示"22:00"等时区问题
- 解决重复提醒自动创建时继承 reminder_times 问题

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

prisma/schema.prisma

@@ -36,10 +36,13 @@ model Event {
   content      String?   // Only for reminders
   date         DateTime  // For anniversaries: the date; For reminders: the reminder date
   is_lunar     Boolean   @default(false)
-  repeat_type  String     @default("none") // 'yearly' | 'monthly' | 'none' (String for SQLite)
+  repeat_type  String    @default("none") // 'yearly' | 'monthly' | 'none' (String for SQLite)
-  is_holiday   Boolean   @default(false) // Only for anniversaries
+  repeat_interval Int?   // Weekly interval (only for weekly type)
-  is_completed Boolean   @default(false) // Only for reminders
+  is_holiday   Boolean  @default(false) // Only for anniversaries
+  is_completed Boolean  @default(false) // Only for reminders
   priority     String    @default("none") // 'none' | 'red' | 'green' | 'yellow' (String for SQLite)
+  next_reminder_date DateTime? // Next reminder date (calculated)
+  reminder_times String? // JSON array of reminder timestamps (ISO strings)
   created_at   DateTime  @default(now())
   updated_at   DateTime  @updatedAt
 

src/routes/events.ts

@@ -4,7 +4,7 @@ import db, { dbPath } from '../lib/db';
 import { authenticateToken, AuthenticatedRequest } from '../middleware/auth';
 import { asyncHandler } from '../middleware/errorHandler';
 
-// Initialize database: Add priority column if it doesn't exist
+// Initialize database: Add columns if they don't exist
 const initDb = async () => {
   try {
     await db.execute({
@@ -18,6 +18,19 @@ const initDb = async () => {
       console.error('Error adding priority column:', error.message);
     }
   }
+
+  try {
+    await db.execute({
+      sql: `ALTER TABLE events ADD COLUMN reminder_times TEXT DEFAULT NULL`,
+    });
+    console.log('✓ Reminder times column added to events table');
+  } catch (error: any) {
+    if (error.message?.includes('duplicate column name') || error.message?.includes('already exists')) {
+      console.log('✓ Reminder times column already exists');
+    } else {
+      console.error('Error adding reminder_times column:', error.message);
+    }
+  }
 };
 
 // Run initialization
@@ -31,7 +44,7 @@ const createEventSchema = z.object({
   type: z.enum(['anniversary', 'reminder']),
   title: z.string().min(1, 'Title is required').max(200),
   content: z.string().optional(),
-  date: z.string().optional(), // Can be empty for reminders
+  date: z.string().optional(), // Can be empty string for reminders
   is_lunar: z.boolean().default(false),
   repeat_type: z.enum(['daily', 'weekly', 'monthly', 'yearly', 'none']).default('none'),
   repeat_interval: z.number().int().positive().optional().nullable(), // 自定义间隔（周数）
@@ -39,6 +52,7 @@ const createEventSchema = z.object({
   is_holiday: z.boolean().default(false),
   is_completed: z.boolean().default(false),
   priority: z.enum(['none', 'red', 'green', 'yellow']).default('none'),
+  reminder_times: z.array(z.string()).optional(), // 提醒时间点数组（JSON）
 });
 
 const updateEventSchema = createEventSchema.partial();
@@ -61,6 +75,7 @@ interface EventRow {
   is_holiday: number;
   is_completed: number;
   priority: string;                   // 优先级：none, red, green, yellow
+  reminder_times: string | null;      // 提醒时间点数组（JSON 字符串）
   created_at: string;
   updated_at: string;
 }
@@ -80,6 +95,7 @@ function formatEvent(event: EventRow) {
     is_holiday: Boolean(event.is_holiday),
     is_completed: Boolean(event.is_completed),
     priority: event.priority as 'none' | 'red' | 'green' | 'yellow',
+    reminder_times: event.reminder_times ? JSON.parse(event.reminder_times) : undefined,
     created_at: event.created_at,
     updated_at: event.updated_at,
   };
@@ -139,11 +155,13 @@ router.post(
     const repeatInterval = data.repeat_type === 'weekly' ? (data.repeat_interval || 1) : null;
     // 如果前端传了 next_reminder_date 就使用它，否则根据 repeat_type 计算
     const nextReminderDate = data.next_reminder_date || null;
+    // 存储 reminder_times 为 JSON 字符串
+    const reminderTimesValue = data.reminder_times ? JSON.stringify(data.reminder_times) : null;
 
     await db.execute({
-      sql: `INSERT INTO events (id, user_id, type, title, content, date, is_lunar, repeat_type, repeat_interval, next_reminder_date, is_holiday, is_completed, priority, created_at, updated_at)
+      sql: `INSERT INTO events (id, user_id, type, title, content, date, is_lunar, repeat_type, repeat_interval, next_reminder_date, is_holiday, is_completed, priority, reminder_times, created_at, updated_at)
-            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 0, ?, datetime('now'), datetime('now'))`,
+            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 0, ?, ?, datetime('now'), datetime('now'))`,
-      args: [eventId, req.user!.userId, data.type, data.title, data.content || null, dateValue, data.is_lunar ? 1 : 0, data.repeat_type, repeatInterval, nextReminderDate, data.is_holiday ? 1 : 0, data.priority],
+      args: [eventId, req.user!.userId, data.type, data.title, data.content || null, dateValue, data.is_lunar ? 1 : 0, data.repeat_type, repeatInterval, nextReminderDate, data.is_holiday ? 1 : 0, data.priority, reminderTimesValue],
     });
 
     const result = await db.execute({
@@ -228,6 +246,12 @@ router.put(
       args.push(data.priority);
     }
 
+    // 处理 reminder_times 更新
+    if (data.reminder_times !== undefined) {
+      updates.push('reminder_times = ?');
+      args.push(data.reminder_times === null ? null : JSON.stringify(data.reminder_times));
+    }
+
     if (updates.length > 0) {
       updates.push('updated_at = datetime(\'now\')');
       args.push(req.params.id);