feat(secrets-mcp): 审计页、audit_log user_id、OAuth 登录与仪表盘 footer

- audit_log 增加 user_id；业务写审计透传 user_id
- Web /audit 与侧边栏；Dashboard 版本 footer 贴底（margin-top: auto）
- 停止 API Key 鉴权成功写入登录审计
- 文档、CI、release-check 配套更新

Made-with: Cursor

Cargo.lock

@@ -1949,7 +1949,7 @@ dependencies = [
 
 [[package]]
 name = "secrets-mcp"
-version = "0.1.6"
+version = "0.1.7"
 dependencies = [
  "anyhow",
  "askama",