feat: add metadata for api doc

src/routes/v1/mod.rs

@@ -12,7 +12,7 @@ async fn openapi_json() -> Json<utoipa::openapi::OpenApi> {
 }
 
 fn public_router() -> Router<AppState> {
-    Router::new().route("/openapi.json", get(openapi_json))
+    Router::new().route("/docs.json", get(openapi_json))
 }
 
 pub fn protected_router() -> Router<AppState> {