fix: 修复评论/资料/导航胶囊/宠物档案/定位等多处问题，补全相关云函数

- 新增 addComment/getComments/getFollowList/followUser/getUser/updateProfile/updatePet/deletePet 云函数并完成部署
- 统一通过 app.globalData.navBarInfo 避让系统胶囊按钮（编辑资料/编辑宠物等页面保存按钮被遮挡问题）
- 编辑资料页所在城市改为省份 picker 选择
- 修复"我的"页动态为空（getUserPosts 应传 openid 而非数据库 _id）
- 重构编辑宠物页：品种改用 picker 滚轮（替代有数量上限的 actionSheet），标签改用 selectedTagSet 映射 + 自定义标签输入（5字以内、仅中英文/数字、最多8个）
- 接通宠物保存/删除真实云函数调用并同步本地缓存
- 移除 feed 页对不存在的 getStories 云函数调用，修复模拟器卡死
- 移除 post 页对不存在的 wx.reverseGeocoder API 的调用
- 统一扩展 AppGlobalData 类型并修正所有 getApp 调用的泛型，解决 TS 报错

miniprogram/pages/post-detail/post-detail.ts

@@ -1,7 +1,43 @@
 import { api } from '../../utils/api'
 import { formatTime, getAvatarGradient } from '../../utils/format'
+import { AppGlobalData } from '../../types/index'
 
-const app = getApp<{ userInfo: any }>()
+const app = getApp<{ globalData: AppGlobalData }>()
+
+function normalizeAuthor(author: any, authorId = '') {
+  return {
+    ...(author || {}),
+    nickName: author?.nickName || '匿名用户',
+    avatarUrl: author?.avatarUrl || '',
+    openid: author?.openid || authorId,
+  }
+}
+
+function normalizePost(post: any) {
+  return {
+    authorId: '',
+    ...(post || {}),
+    author: normalizeAuthor(post?.author, post?.authorId),
+    content: post?.content || '',
+    images: Array.isArray(post?.images) ? post.images : [],
+    hashtags: Array.isArray(post?.hashtags) ? post.hashtags : [],
+    likeCount: typeof post?.likeCount === 'number' ? post.likeCount : 0,
+    commentCount: typeof post?.commentCount === 'number' ? post.commentCount : 0,
+    createdAt: post?.createdAt || '',
+  }
+}
+
+function normalizeComment(comment: any) {
+  return {
+    authorId: '',
+    ...(comment || {}),
+    author: normalizeAuthor(comment?.author, comment?.authorId),
+    content: comment?.content || '',
+    createdAt: comment?.createdAt || '',
+    gradient: getAvatarGradient(comment?.authorId || ''),
+    timeText: comment?.createdAt ? formatTime(comment.createdAt) : '',
+  }
+}
 
 Page({
   data: {
@@ -14,15 +50,17 @@ Page({
     likeCount: 0,
     commentText: '',
     focusInput: false,
+    pendingFocusComment: false,
   },
 
   onLoad(query: { id?: string; focus?: string }) {
     const info = wx.getSystemInfoSync()
-    this.setData({ statusBarHeight: info.statusBarHeight, postId: query.id || '' })
+    this.setData({
+      statusBarHeight: info.statusBarHeight,
+      postId: query.id || '',
+      pendingFocusComment: query.focus === 'comment',
+    })
     this.loadPost(query.id || '')
-    if (query.focus === 'comment') {
-      this.setData({ focusInput: true })
-    }
   },
 
   async loadPost(id: string) {
@@ -32,14 +70,19 @@ Page({
         name: 'getPost',
         data: { postId: id },
       }) as any
-      const post = res.result?.data
-      if (!post) return
+      const post = normalizePost(res.result?.data)
+      if (!post?._id) return
       this.setData({
         post,
-        avatarGradient: getAvatarGradient(post.authorId),
-        timeText: formatTime(post.createdAt),
+        avatarGradient: getAvatarGradient(post.authorId || ''),
+        timeText: post.createdAt ? formatTime(post.createdAt) : '',
         likeCount: post.likeCount,
       })
+      if (this.data.pendingFocusComment) {
+        wx.nextTick(() => {
+          this.setData({ focusInput: true, pendingFocusComment: false })
+        })
+      }
       this.loadComments(id)
     } catch {}
   },
@@ -47,11 +90,7 @@ Page({
   async loadComments(postId: string) {
     try {
       const res = await api.getComments(postId)
-      const comments = res.list.map((c: any) => ({
-        ...c,
-        gradient: getAvatarGradient(c.authorId),
-        timeText: formatTime(c.createdAt),
-      }))
+      const comments = res.list.map(normalizeComment)
       this.setData({ comments })
     } catch {}
   },
@@ -73,6 +112,10 @@ Page({
     this.setData({ commentText: e.detail.value })
   },
 
+  onCommentBlur() {
+    this.setData({ focusInput: false })
+  },
+
   async onSend() {
     const text = this.data.commentText.trim()
     if (!text || !this.data.postId) return
@@ -81,11 +124,7 @@ Page({
       await api.addComment(this.data.postId, text)
       const comments = await api.getComments(this.data.postId)
       this.setData({
-        comments: comments.list.map((c: any) => ({
-          ...c,
-          gradient: getAvatarGradient(c.authorId),
-          timeText: formatTime(c.createdAt),
-        })),
+        comments: comments.list.map(normalizeComment),
       })
     } catch {
       wx.showToast({ title: '发送失败', icon: 'none' })

miniprogram/pages/post-detail/post-detail.wxml

@@ -13,10 +13,10 @@
       <!-- 作者 -->
       <view class="post-header" bindtap="onAuthorTap">
         <view class="avatar" style="background: {{avatarGradient}}">
-          <text>{{post.author.nickName[0]}}</text>
+          <text>{{post.author && post.author.nickName ? post.author.nickName[0] : '?'}}</text>
         </view>
         <view class="meta">
-          <text class="uname">{{post.author.nickName}}</text>
+          <text class="uname">{{post.author && post.author.nickName ? post.author.nickName : '匿名用户'}}</text>
           <text class="utime">{{timeText}}</text>
         </view>
       </view>
@@ -25,11 +25,11 @@
       <text class="content">{{post.content}}</text>
 
       <!-- 图片 -->
-      <view wx:if="{{post.images.length > 0}}" class="images">
+      <view wx:if="{{post.images && post.images.length > 0}}" class="images">
         <image
           wx:for="{{post.images}}"
           wx:key="index"
-          class="img {{post.images.length === 1 ? 'img-full' : 'img-grid'}}"
+          class="img {{post.images && post.images.length === 1 ? 'img-full' : 'img-grid'}}"
           src="{{item}}"
           mode="aspectFill"
           lazy-load="true"
@@ -73,10 +73,10 @@
         class="comment-item"
       >
         <view class="c-avatar" style="background: {{item.gradient}}">
-          <text>{{item.author.nickName[0]}}</text>
+          <text>{{item.author && item.author.nickName ? item.author.nickName[0] : '?'}}</text>
         </view>
         <view class="c-body">
-          <text class="c-name">{{item.author.nickName}}</text>
+          <text class="c-name">{{item.author && item.author.nickName ? item.author.nickName : '匿名用户'}}</text>
           <text class="c-text">{{item.content}}</text>
           <text class="c-time">{{item.timeText}}</text>
         </view>
@@ -92,7 +92,9 @@
       class="comment-input"
       id="commentInput"
       value="{{commentText}}"
+      focus="{{focusInput}}"
       bindinput="onCommentInput"
+      bindblur="onCommentBlur"
       placeholder="写下你的想法..."
       confirm-type="send"
       bindconfirm="onSend"