chore: 清理冗余代码并补全私信/搜索/故事/通知功能

- 删除未使用的空组件目录、死代码导出(clearAuth/calcDistance/COLORS/
  AVATAR_GRADIENTS/Message/TabBarItem/deletePost/uploadImage/getFileURL/
  _initLogin)，确保程序仍可正常运行
- 新增 8 个云函数并补全对应页面逻辑：getMessages/sendMessage(私信聊天)、
  getHotTopics/searchPosts/searchUsers(搜索)、getStory(故事，复用 posts
  集合)、getNotifications/markAllRead(基于点赞评论聚合的通知系统)
- 在 cloudbaserc.json 中注册全部新云函数，并通过 --deployMode zip 完成部署

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

miniprogram/utils/api.ts

@@ -1,4 +1,4 @@
-import { Post, UserProfile, NearbyUser, Pet } from '../types/index'
+import { Post, UserProfile, NearbyUser, Pet, Comment } from '../types/index'
 
 type CloudResult<T> = { result: { code: number; data: T; message?: string } }
 
@@ -31,9 +31,6 @@ export const api = {
     petId?: string
   }) => call<Post>('createPost', params),
 
-  deletePost: (postId: string) =>
-    call<void>('deletePost', { postId }),
-
   likePost: (postId: string) =>
     call<{ liked: boolean; count: number }>('likePost', { postId }),
 
@@ -58,11 +55,11 @@ export const api = {
   getFollowList: (type: 'following' | 'followers', userId?: string) =>
     call<UserProfile[]>('getFollowList', { type, userId }),
 
-  getMessages: (page = 0) =>
-    call<{ list: any[]; unreadCount: number }>('getMessages', { page }),
+  getMessages: (peerId: string, page = 0) =>
+    call<{ list: any[]; unreadCount: number }>('getMessages', { peerId, page }),
 
   sendMessage: (toId: string, content: string, type = 'text') =>
-    call<void>('sendMessage', { toId, content, type }),
+    call<{ _id: string }>('sendMessage', { toId, content, type }),
 
   updatePet: (pet: Partial<Pet> & { _id?: string }) =>
     call<Pet>('updatePet', { pet }),
@@ -70,15 +67,21 @@ export const api = {
   deletePet: (petId: string) =>
     call<void>('deletePet', { petId }),
 
-  uploadImage: async (filePath: string): Promise<string> => {
-    const ext = filePath.split('.').pop() || 'jpg'
-    const cloudPath = `posts/${Date.now()}_${Math.random().toString(36).slice(2)}.${ext}`
-    const res = await wx.cloud.uploadFile({ cloudPath, filePath })
-    return res.fileID
-  },
+  getHotTopics: () =>
+    call<{ tag: string; count: number }[]>('getHotTopics'),
 
-  getFileURL: async (fileID: string): Promise<string> => {
-    const res = await wx.cloud.getTempFileURL({ fileList: [fileID] })
-    return res.fileList[0]?.tempFileURL || fileID
-  },
+  searchPosts: (keyword: string) =>
+    call<Post[]>('searchPosts', { keyword }),
+
+  searchUsers: (keyword: string) =>
+    call<UserProfile[]>('searchUsers', { keyword }),
+
+  getStory: (id: string) =>
+    call<any[]>('getStory', { id }),
+
+  getNotifications: () =>
+    call<any[]>('getNotifications'),
+
+  markAllRead: () =>
+    call<void>('markAllRead'),
 }

miniprogram/utils/auth.ts

@@ -1,7 +1,6 @@
 import { UserProfile } from '../types/index'
 import { api } from './api'
 
-const TOKEN_KEY = 'wangquan_token'
 const USER_KEY = 'wangquan_user'
 
 export async function login(): Promise<UserProfile> {
@@ -19,11 +18,6 @@ export function getCachedUser(): UserProfile | null {
   }
 }
 
-export function clearAuth(): void {
-  wx.removeStorageSync(TOKEN_KEY)
-  wx.removeStorageSync(USER_KEY)
-}
-
 export async function requireLocation(): Promise<{ latitude: number; longitude: number }> {
   return new Promise((resolve, reject) => {
     wx.getLocation({

miniprogram/utils/constants.ts

@@ -1,28 +1,5 @@
 export const CLOUD_ENV = 'cloud1-d4g697lte499543d8'
 
-export const COLORS = {
-  pink: '#ff4f91',
-  orange: '#ff9f1c',
-  yellow: '#ffe15a',
-  green: '#2fd37a',
-  mint: '#67e8c9',
-  blue: '#4d8dff',
-  violet: '#8c5cff',
-  ink: '#272235',
-  bgPrimary: '#fff9fb',
-  textPrimary: '#272235',
-  textSecondary: '#6a6178',
-  textTertiary: '#9b8fa8',
-}
-
-export const AVATAR_GRADIENTS = [
-  'linear-gradient(135deg, #ffd6e8, #fff1a6)',
-  'linear-gradient(135deg, #ffe7a0, #b7f4d2)',
-  'linear-gradient(135deg, #c9f7df, #d9d2ff)',
-  'linear-gradient(135deg, #cfe8ff, #ffd6e8)',
-  'linear-gradient(135deg, #e3d8ff, #ffd6e8)',
-]
-
 export const MOOD_OPTIONS = [
   { label: '开心 😄', value: 'happy' },
   { label: '累了 😮‍💨', value: 'tired' },

miniprogram/utils/format.ts

@@ -61,12 +61,3 @@ export function getPetEmoji(species: string, breed?: string): string {
   }
   return (breed && dogBreedEmoji[breed]) || '🐶'
 }
-
-export function calcDistance(lat1: number, lng1: number, lat2: number, lng2: number): number {
-  const R = 6371000
-  const dLat = (lat2 - lat1) * Math.PI / 180
-  const dLng = (lng2 - lng1) * Math.PI / 180
-  const a = Math.sin(dLat / 2) ** 2 +
-    Math.cos(lat1 * Math.PI / 180) * Math.cos(lat2 * Math.PI / 180) * Math.sin(dLng / 2) ** 2
-  return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a))
-}