feat: 第三方渠道上下文与开放平台服务接入

1、修复了企业版/个人版在第三方入口下的人脸与测评跳转问题。

2、新增 ThirdPartyChannel/OpenPlatformService 及上下文 thirdPartyContext，补充相关迁移。

3、调整 Analyze/Auth/Test 等接口与小程序入口逻辑。

Made-with: Cursor

miniprogram/utils/thirdPartyContext.js

@@ -0,0 +1,126 @@
+/**
+ * 第三方渠道参数：query / scene 中的 userid、phone、tid（与分销 uid 分流）
+ * 仅存 globalData，登录时透传 thirdParty
+ */
+
+function safeDecode(v) {
+  if (v == null || v === '') return ''
+  const s = String(v).trim()
+  if (!s) return ''
+  try {
+    return decodeURIComponent(s)
+  } catch (e) {
+    return s
+  }
+}
+
+function ensureChannel(app) {
+  if (!app.globalData.thirdPartyChannel) {
+    app.globalData.thirdPartyChannel = {
+      userid: '',
+      phone: '',
+      tid: '',
+      capturedAt: 0,
+    }
+  }
+  return app.globalData.thirdPartyChannel
+}
+
+/**
+ * 从 query 对象合并（同字段以首次非空为准）
+ */
+function mergeThirdPartyFromQuery(q) {
+  if (!q || typeof q !== 'object') return false
+  const app = getApp()
+  const ch = ensureChannel(app)
+  let changed = false
+  const touch = (key, raw) => {
+    const v = safeDecode(raw)
+    if (!v) return
+    if (!ch[key]) {
+      ch[key] = v
+      changed = true
+    }
+  }
+  touch('userid', q.userid)
+  touch('phone', q.phone)
+  touch('tid', q.tid)
+  if (changed) ch.capturedAt = Date.now()
+  return changed
+}
+
+/** App.onLaunch 使用 */
+function ingestThirdPartyFromLaunch(launchOptions) {
+  const q = (launchOptions && launchOptions.query) || {}
+  mergeThirdPartyFromQuery(q)
+}
+
+/**
+ * 页面 onLoad：合并 options + 已解码的 sceneParams
+ * @returns {boolean} 是否有新字段写入（便于触发二次 silentLogin）
+ */
+function mergeFromPageOptions(options, sceneParams) {
+  const o = {}
+  if (options && typeof options === 'object') {
+    if (options.userid != null) o.userid = options.userid
+    if (options.phone != null) o.phone = options.phone
+    if (options.tid != null) o.tid = options.tid
+  }
+  const c1 = mergeThirdPartyFromQuery(o)
+  const c2 = mergeThirdPartyFromQuery(sceneParams || {})
+  return !!(c1 || c2)
+}
+
+/**
+ * 任意可作为外链入口的页面 onLoad 首行调用：解析 options.query + options.scene，合并第三方参数并视情况 silentLogin
+ * @param {object} [options] Page.onLoad 第一个参数
+ * @param {object} [appInst] App 实例，默认 getApp()
+ */
+function ingestThirdPartyOnPageLoad(options, appInst) {
+  options = options || {}
+  let rawScene = ''
+  try {
+    rawScene = options.scene ? decodeURIComponent(String(options.scene)) : ''
+  } catch (e) {
+    rawScene = options.scene ? String(options.scene) : ''
+  }
+  const sceneParams = {}
+  if (rawScene) {
+    rawScene.split('&').forEach((pair) => {
+      const [k, v] = pair.split('=')
+      if (k) sceneParams[k] = v || ''
+    })
+  }
+  const changed = mergeFromPageOptions(options, sceneParams)
+  const app = appInst || getApp()
+  if (changed && app && typeof app.silentLogin === 'function') {
+    app.silentLogin().catch(() => {})
+  }
+}
+
+/** 登录 POST 体片段 */
+function getThirdPartyForLoginBody() {
+  try {
+    const app = getApp()
+    const ch = app.globalData.thirdPartyChannel || {}
+    const userid = String(ch.userid || '').trim()
+    const phone = String(ch.phone || '').trim()
+    const tid = String(ch.tid || '').trim()
+    if (!userid && !phone && !tid) return {}
+    const thirdParty = {}
+    if (userid) thirdParty.userid = userid
+    if (phone) thirdParty.phone = phone
+    if (tid) thirdParty.tid = tid
+    return { thirdParty }
+  } catch (e) {
+    return {}
+  }
+}
+
+module.exports = {
+  ingestThirdPartyFromLaunch,
+  ingestThirdPartyOnPageLoad,
+  mergeFromPageOptions,
+  mergeThirdPartyFromQuery,
+  getThirdPartyForLoginBody,
+}