feat(secrets-mcp): MCP 请求日志、探测 404 与资源元数据

- 新增 logging 中间件：记录 client_ip、ua、JSON-RPC、tool 等
- tools 各入口/出口结构化日志
- 探测型 404（/.well-known、GET /mcp）降为 debug
- /.well-known/oauth-protected-resource 最小元数据
- secrets-mcp 0.1.11

Made-with: Cursor

Cargo.lock

@@ -1949,7 +1949,7 @@ dependencies = [
 
 [[package]]
 name = "secrets-mcp"
-version = "0.1.10"
+version = "0.1.11"
 dependencies = [
  "anyhow",
  "askama",
@@ -2700,6 +2700,7 @@ dependencies = [
  "tower",
  "tower-layer",
  "tower-service",
+ "tracing",
 ]
 
 [[package]]