refactor: 个人自用，移除登录与云同步全链路

站点只给本人用，云乐坊 SSO 授权、收藏/历史云同步、获客归因和账号切换记账都没有收益，却被登录状态检查和同步失败提示持续打扰。

- 删除 useYunlefunAuth / yunlefunAuth / yunlefunSsoConfig / yunlefunAuth 适配器、useUserDataSync / userDataSync / userData 适配器、三个 client 插件与 /auth/callback 回调页
- 抽出 adapters/cloudbase.ts，让「反馈一下」和匿名筛选信号不再依赖登录态；cook-feedback 云函数保留
- 删除 cook-user-data 云函数与 cook_user_data 权限规则，移除 @yunlefun/sso 依赖
- 「我的」页删掉登录按钮、账号卡、四个统计格和退出登录；「关于」页删掉项目作者、致谢名单和上游宣传链接
- 本地收藏/历史与导出导入保留，删除同步专用的 lastUid 记账

取舍见 docs/decisions/0005-drop-login-and-sync.md

cloudfunctions/cook-user-data/index.js

@@ -1,129 +0,0 @@
-/**
- * Cook favorites / history sync (YunYouJun/cook#98).
- *
- * The `cook_user_data` collection is ADMINONLY: browsers never read or write
- * it directly. This function takes the caller from the verified CloudBase
- * session, never from the request, and always uses it as the document id, so
- * nobody can read, overwrite or pre-create another account's document.
- */
-
-const { Buffer } = require('node:buffer')
-
-const COLLECTION = 'cook_user_data'
-const USER_DATA_VERSION = 1
-const MAX_DOCUMENT_BYTES = 256 * 1024
-const LIST_LIMITS = {
-  favorites: 5000,
-  favoriteRemovals: 1000,
-  histories: 500,
-  historyRemovals: 1000,
-}
-const ANON_UIDS = new Set(['', 'anon'])
-
-let app
-
-function getApp() {
-  if (!app) {
-    // Loaded lazily so tests can inject a fake app without the SDK installed.
-    const tcb = require('@cloudbase/node-sdk')
-    app = tcb.init({ env: tcb.SYMBOL_CURRENT_ENV })
-  }
-  return app
-}
-
-/** The signed-in, non-anonymous caller, or '' when there is none. */
-function callerUid() {
-  try {
-    const info = getApp().auth().getUserInfo()
-    const uid = info && info.uid ? String(info.uid) : ''
-    return ANON_UIDS.has(uid) || (info && info.isAnonymous === true) ? '' : uid
-  }
-  catch {
-    return ''
-  }
-}
-
-function fail(code) {
-  return { ok: false, code }
-}
-
-function isRecord(value) {
-  return value !== null && typeof value === 'object' && !Array.isArray(value)
-}
-
-/**
- * Check the shape and size of an uploaded document. Entry contents are
- * normalised again by every client that reads them.
- */
-function readDocument(value) {
-  if (!isRecord(value) || value.version !== USER_DATA_VERSION)
-    return null
-  if (Buffer.byteLength(JSON.stringify(value), 'utf8') > MAX_DOCUMENT_BYTES)
-    return null
-
-  const document = { version: USER_DATA_VERSION }
-  for (const [key, limit] of Object.entries(LIST_LIMITS)) {
-    const list = value[key] ?? []
-    if (!Array.isArray(list) || list.length > limit || !list.every(isRecord))
-      return null
-    document[key] = list
-  }
-  const clearedAt = value.historyClearedAt ?? 0
-  if (typeof clearedAt !== 'number' || !Number.isFinite(clearedAt) || clearedAt < 0)
-    return null
-  document.historyClearedAt = clearedAt
-  return document
-}
-
-function stripMeta(doc) {
-  if (!isRecord(doc))
-    return null
-  const { _id, _openid, ...rest } = doc
-  return rest
-}
-
-async function getDocument(uid) {
-  const result = await getApp().database().collection(COLLECTION).doc(uid).get()
-  const doc = result && Array.isArray(result.data) ? result.data[0] : null
-  return { ok: true, document: stripMeta(doc) }
-}
-
-async function setDocument(uid, input, now) {
-  const document = readDocument(input)
-  if (!document)
-    return fail('INVALID_DOCUMENT')
-  await getApp().database().collection(COLLECTION).doc(uid).set({ ...document, updatedAt: now })
-  return { ok: true, updatedAt: now }
-}
-
-async function main(event = {}) {
-  const uid = callerUid()
-  if (!uid)
-    return fail('LOGIN_REQUIRED')
-
-  try {
-    switch (event.action) {
-      case 'get':
-        return await getDocument(uid)
-      case 'set':
-        return await setDocument(uid, event.document, Date.now())
-      default:
-        return fail('UNKNOWN_ACTION')
-    }
-  }
-  catch (error) {
-    console.error('[cook-user-data]', event.action, error && error.message)
-    return fail('INTERNAL_ERROR')
-  }
-}
-
-exports.main = main
-exports._internal = {
-  COLLECTION,
-  LIST_LIMITS,
-  MAX_DOCUMENT_BYTES,
-  readDocument,
-  setAppForTest(nextApp) {
-    app = nextApp
-  },
-}

cloudfunctions/cook-user-data/package.json

@@ -1,9 +0,0 @@
-{
-  "name": "cook-user-data",
-  "version": "0.0.0",
-  "private": true,
-  "main": "index.js",
-  "dependencies": {
-    "@cloudbase/node-sdk": "^3.18.1"
-  }
-}