feat: 申诉常见理由快捷选择 + 证据截图上传

- 后端: 新增 appeal_reason_type, appeal_evidence_urls 字段
- 后端: 新建 upload_routes.py 图片上传接口
- 前端: history 页面添加快捷理由选择器 + 截图上传
- 前端: admin-review 页面展示证据图片 + 点击预览
- 新增 SQL 更新脚本 update_appeal_fields.sql

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

miniprogram/pages/history/index.js

@@ -1,4 +1,4 @@
-const { request } = require('../../utils/request')
+const { request, uploadFile } = require('../../utils/request')
 
 const STATUS_OPTIONS = [
   { value: '', label: '全部状态' },
@@ -26,6 +26,14 @@ const APPEAL_STATUS_TEXT = {
   rejected: '已驳回'
 }
 
+const REASON_TYPE_OPTIONS = [
+  { value: '', label: '请选择申诉理由类型' },
+  { value: '正常活动文案', label: '正常活动文案' },
+  { value: '正常社区通知', label: '正常社区通知' },
+  { value: '私信沟通内容', label: '私信沟通内容' },
+  { value: '其他', label: '其他（需手动填写）' }
+]
+
 Page({
   data: {
     loading: false,
@@ -35,7 +43,12 @@ Page({
     visibilityOptions: VISIBILITY_OPTIONS,
     visibilityIndex: 0,
     appealPostId: null,
-    appealReason: ''
+    appealReasonType: '',
+    appealReasonTypeOptions: REASON_TYPE_OPTIONS,
+    appealReasonTypeIndex: 0,
+    appealReason: '',
+    appealEvidenceUrls: [],
+    appealEvidenceFiles: []
   },
 
   formatPercent(value, digits = 2) {
@@ -84,33 +97,112 @@ Page({
 
   startAppeal(e) {
     const postId = Number(e.currentTarget.dataset.id)
-    this.setData({ appealPostId: postId, appealReason: '' })
+    this.setData({
+      appealPostId: postId,
+      appealReasonType: '',
+      appealReasonTypeIndex: 0,
+      appealReason: '',
+      appealEvidenceUrls: [],
+      appealEvidenceFiles: []
+    })
+  },
+
+  onReasonTypeChange(e) {
+    const idx = Number(e.detail.value || 0)
+    const reasonType = this.data.appealReasonTypeOptions[idx].value
+    this.setData({ appealReasonTypeIndex: idx, appealReasonType: reasonType })
+    // 如果选择"其他"，清空快捷理由，让用户手动输入
+    if (reasonType === '其他') {
+      this.setData({ appealReasonType: '' })
+    }
   },
 
   onAppealInput(e) {
     this.setData({ appealReason: e.detail.value || '' })
   },
 
+  chooseEvidence() {
+    wx.chooseMedia({
+      count: 3,
+      mediaType: ['image'],
+      sourceType: ['album', 'camera'],
+      success: (res) => {
+        const files = res.tempFiles.map((f) => f.tempFilePath)
+        this.setData({
+          appealEvidenceFiles: [...this.data.appealEvidenceFiles, ...files].slice(0, 3)
+        })
+      }
+    })
+  },
+
+  removeEvidence(e) {
+    const idx = Number(e.currentTarget.dataset.index || 0)
+    const files = this.data.appealEvidenceFiles.filter((_, i) => i !== idx)
+    const urls = this.data.appealEvidenceUrls.filter((_, i) => i !== idx)
+    this.setData({ appealEvidenceFiles: files, appealEvidenceUrls: urls })
+  },
+
+  async uploadAllEvidence() {
+    const files = this.data.appealEvidenceFiles
+    if (!files.length) return []
+
+    const urls = []
+    for (const filePath of files) {
+      try {
+        const result = await uploadFile(filePath)
+        urls.push(result.url)
+      } catch (err) {
+        console.error('上传失败', filePath, err)
+      }
+    }
+    return urls
+  },
+
   cancelAppeal() {
-    this.setData({ appealPostId: null, appealReason: '' })
+    this.setData({
+      appealPostId: null,
+      appealReasonType: '',
+      appealReasonTypeIndex: 0,
+      appealReason: '',
+      appealEvidenceUrls: [],
+      appealEvidenceFiles: []
+    })
   },
 
   async submitAppeal() {
     const postId = this.data.appealPostId
     if (!postId) return
+
+    const reasonType = (this.data.appealReasonType || '').trim()
     const reason = (this.data.appealReason || '').trim()
-    if (reason.length < 2) {
+
+    // 如果没有选择快捷理由类型，必须手动填写理由
+    if (!reasonType && reason.length < 2) {
       wx.showToast({ title: '申诉理由至少 2 个字符', icon: 'none' })
       return
     }
 
+    // 上传证据图片
+    const evidenceUrls = await this.uploadAllEvidence()
+
     await request({
       url: `/content/posts/${postId}/appeal`,
       method: 'POST',
-      data: { reason }
+      data: {
+        reason_type: reasonType,
+        reason,
+        evidence_urls: evidenceUrls
+      }
     })
     wx.showToast({ title: '申诉提交成功', icon: 'success' })
-    this.setData({ appealPostId: null, appealReason: '' })
+    this.setData({
+      appealPostId: null,
+      appealReasonType: '',
+      appealReasonTypeIndex: 0,
+      appealReason: '',
+      appealEvidenceUrls: [],
+      appealEvidenceFiles: []
+    })
     this.fetchList()
   },