refactor(chat): split Turnfold into standalone repository

chat/compose.yml

@@ -85,15 +85,22 @@ services:
 
   chat:
     build:
-      context: .
-    image: xiteng-chat:local
+      context: ./app
+      args:
+        BASE_PATH: /chat
+        HOME_URL: /
+    image: turnfold:local
     container_name: xiteng-chat
     restart: unless-stopped
     environment:
+      AUTH_MODE: forward-auth
+      AUTH_ISSUER: https://auth.xiteng.site
+      BASE_PATH: /chat
       KEY_VAULT_URL: http://ai-gateway:8093
       KEY_VAULT_TOKEN_FILE: /run/secrets/portal_gateway_hmac
       CHAT_DATABASE_PATH: /data/chat.db
       PORTAL_URL: http://xiteng-site:8080
+      ACCOUNT_URL: https://xiteng.site/account
       PUBLIC_PROVIDER_CATALOG_FILE: /app/providers.json
     volumes:
       - ../ai-gateway/secrets/portal_gateway_hmac:/run/secrets/portal_gateway_hmac:ro
@@ -158,8 +165,8 @@ services:
       - "xiteng.site.cache.chat.edge-ttl=604800"
       - "xiteng.site.cache.chat.stale-while-revalidate=86400"
       - "xiteng.site.component.chat.enabled=true"
-      - "xiteng.site.component.chat.name=Xiteng Chat"
-      - "xiteng.site.component.chat.description=本地优先的 AI 对话界面；无需登录即可使用浏览器 Provider，登录后启用个人同步与 Key Vault。"
+      - "xiteng.site.component.chat.name=Turnfold"
+      - "xiteng.site.component.chat.description=本地优先、支持分支式历史的 AI 对话仓库；无需登录即可使用浏览器 Provider，登录后启用个人同步与 Key Vault。"
       - "xiteng.site.component.chat.section=services"
       - "xiteng.site.component.chat.category=AI"
       - "xiteng.site.component.chat.url=https://xiteng.site/chat/"