refactor modes implementation and improve validation handling

refactor `code` and `hybrid` modes for better type safety and configuration flexibility. add `_isProd` helper to standardize environment checks and improve plugin syncing warnings. adjust validation logic for clean JSON schema handling and enhance test coverage for modes.

app/src/adapter/node/node.adapter.ts

@@ -24,7 +24,7 @@ export async function createApp<Env = NodeEnv>(
       path.resolve(distPath ?? relativeDistPath ?? "./node_modules/bknd/dist", "static"),
    );
    if (relativeDistPath) {
-      console.warn("relativeDistPath is deprecated, please use distPath instead");
+      $console.warn("relativeDistPath is deprecated, please use distPath instead");
    }
 
    registerLocalMediaAdapter();