chore(routes): close Shanghai mission and unify code channel

.code-map

@@ -14,7 +14,7 @@ CODE-CHANNEL-API=https://guanghulab.com/code/api/v1
 CODE-CHANNEL-CANONICAL-MAP=routing/code-channel-canonical-map.json
 PERSONA-SYSTEM-ROOT=PERSONA-SYSTEM-ROOT.hdlp
 PERSONA-SYSTEM-CANONICAL-MAP=routing/persona-system-canonical-map.json
-CURRENT-PUSH-ALLOWLIST=REPO-012,REPO-014
+CURRENT-PUSH-ALLOWLIST=REPO-012,REPO-014,REPO-015
 LEGACY-REPOSITORY-PUSH=FORBIDDEN
 LEGACY-REPOSITORY-RESOLUTION=HISTORICAL_READ_ONLY
 # 下列 REPO-001..011 URL 是历史证据字段，不是当前远端；工具不得据此设置 origin 或 push。
@@ -105,6 +105,10 @@ REPO-014=https://guanghulab.com/code/bingshuo/hololake-system-architecture.git
 REPO-014-WEB=https://guanghulab.com/code/bingshuo/hololake-system-architecture
 REPO-014-ROLE=HoloLake 光湖语言世界底层架构、产品源码、公开系统规划、工程记录与构建回执
 REPO-014-INITIAL-COMMIT=ee9a85a5cab7765f173b4ecc221da55012646303
+REPO-015=https://guanghulab.com/code/bingshuo/grok-build-upstream-mirror.git
+REPO-015-WEB=https://guanghulab.com/code/bingshuo/grok-build-upstream-mirror
+REPO-015-UPSTREAM=https://github.com/xai-org/grok-build.git
+REPO-015-ROLE=外部上游源码隔离学习与净化镜像 · 非可信运行时 · 禁止部署
 HOLOLAKE-SYSTEM-ARCHITECTURE=REPO-014
 GLS-0246=gls/GLS-0246-HOLOLAKE-SYSTEM-ARCHITECTURE-REPOSITORY-ROUTING.hdlp
 CHENGLU-AGENT-001=https://guanghulab.com/fifth-domain/bingshuo/chenglu-agent/src/branch/main/IDENTITY.hdlp