feat: GitHub App manifest 扩到主机最大权限

仓库权限除 metadata 外全部拉到最高档（contents/pull_requests/
issues/actions/checks/workflows/administration 等全部 write，
members 只读），事件补齐 push/check_run/workflow_run 等；
旧权限 contents/pull_requests write + issues read 不再是上限。
风险明示：administration=write 含删库/转移，secrets=write
含管理 secret，配 All repositories 时影响面为全账号仓库。
注意：改代码只改以后新建 App 的 manifest，线上 App
(id 5476837) 仍需在 GitHub 设置里改权限并接受新权限。

cloud/github_app.py

@@ -45,14 +45,66 @@ SETUP_STATE_TTL_SECONDS = 3600
 DEFAULT_APP_NAME = "codex-app-server"
 DEFAULT_APP_URL = "https://github.com/openqj/codex-app-server"
 
-# App 权限与事件：与当前 PAT 能力对齐（读仓库、推分支、建 PR、
-# 读 issue），不多要；webhook 只订阅 /fix-review 与 PR 相关事件。
+# App 权限与事件：主机最大权限（用户 2026-10-27 明确要求扩到
+# 最高、所有能力）。这是 manifest 的默认值，只影响以后新建的
+# App；已存在的线上 App（id 5476837）不会因改代码自动变权限，
+# 必须在 GitHub App 设置里改权限并由安装方接受新权限后才生效。
+# 风险明示：administration=write 含改仓库设置/删库/转移，
+# secrets=write 含管理仓库 secret，配 All repositories 安装会把
+# 影响面扩到该账号全部仓库——只装在自己信任的账号上。
+# organization/enterprise/billing 类权限不在此列：它们不属于
+# 主机跑任务的能力，且需组织/企业管理员另行审批，不应由一个
+# 代码托管 App 默认索取。
 APP_PERMISSIONS = {
+    # 仓库：除 metadata（GitHub 自动只读）外全部拉到最高档。
+    "actions": "write",
+    "actions_variables": "write",
+    "administration": "write",
+    "artifact_metadata": "write",
+    "attestations": "write",
+    "checks": "write",
+    "codespaces": "write",
+    "codespaces_metadata": "read",
+    "codespaces_secrets": "write",
     "contents": "write",
+    "dependabot_secrets": "write",
+    "deployments": "write",
+    "discussions": "write",
+    "environments": "write",
+    "issues": "write",
+    "merge_queues": "write",
+    "packages": "write",
+    "pages": "write",
     "pull_requests": "write",
-    "issues": "read",
+    "repository_advisories": "write",
+    "repository_custom_properties": "write",
+    "repository_hooks": "write",
+    "secret_scanning_alerts": "write",
+    "secrets": "write",
+    "security_events": "write",
+    "statuses": "write",
+    "vulnerability_alerts": "write",
+    "workflows": "write",
+    # 组织：只读成员，用于列协作者；不索取组织管理权。
+    "members": "read",
 }
-APP_EVENTS = ["issue_comment", "pull_request"]
+APP_EVENTS = [
+    "push",
+    "create",
+    "delete",
+    "pull_request",
+    "pull_request_review",
+    "pull_request_review_comment",
+    "issue_comment",
+    "issues",
+    "check_run",
+    "check_suite",
+    "workflow_run",
+    "release",
+    "deployment",
+    "deployment_status",
+    "discussion",
+]
 
 
 class AppError(Exception):