refactor(server): move logger setup to eager entrypoint

Relocates the global logger configuration from the root middleware (`routes/_middleware.dart`) to the new eager-loading entrypoint (`bin/main.dart`).

This is an architectural improvement that ensures the logger is configured exactly once when the application process starts, rather than within a middleware that could be re-instantiated. It makes the startup sequence more robust and simplifies the root middleware's responsibilities.

Author: fulleni

bin/main.dart

@@ -21,6 +21,26 @@ import '../.dart_frog/server.dart' as server;
 /// "fail-fast" approach suitable for production environments.
 Future<void> main(List<String> args) async {
   // Use a local logger for startup-specific messages.
+  // This is also the ideal place to configure the root logger for the entire
+  // application, as it's guaranteed to run only once at startup.
+  Logger.root.level = Level.ALL;
+  Logger.root.onRecord.listen((record) {
+    // A more detailed logger that includes the error and stack trace.
+    // ignore: avoid_print
+    print(
+      '${record.level.name}: ${record.time}: ${record.loggerName}: '
+      '${record.message}',
+    );
+    if (record.error != null) {
+      // ignore: avoid_print
+      print('  ERROR: ${record.error}');
+    }
+    if (record.stackTrace != null) {
+      // ignore: avoid_print
+      print('  STACK TRACE: ${record.stackTrace}');
+    }
+  });
+
   final log = Logger('EagerEntrypoint');
 
   try {

routes/_middleware.dart

@@ -22,38 +22,12 @@ import 'package:mongo_dart/mongo_dart.dart';
 // --- Middleware Definition ---
 final _log = Logger('RootMiddleware');
 
-// A flag to ensure the logger is only configured once for the application's
-// entire lifecycle.
-bool _loggerConfigured = false;
-
 Handler middleware(Handler handler) {
   // This is the root middleware for the entire API. It's responsible for
   // providing all shared dependencies to the request context.
   // The order of `.use()` calls is important: the last one in the chain
   // runs first.
 
-  // This check ensures that the logger is configured only once.
-  if (!_loggerConfigured) {
-    Logger.root.level = Level.ALL;
-    Logger.root.onRecord.listen((record) {
-      // A more detailed logger that includes the error and stack trace.
-      // ignore: avoid_print
-      print(
-        '${record.level.name}: ${record.time}: ${record.loggerName}: '
-        '${record.message}',
-      );
-      if (record.error != null) {
-        // ignore: avoid_print
-        print('  ERROR: ${record.error}');
-      }
-      if (record.stackTrace != null) {
-        // ignore: avoid_print
-        print('  STACK TRACE: ${record.stackTrace}');
-      }
-    });
-    _loggerConfigured = true;
-  }
-
   return handler
       // --- Core Middleware ---
       // These run after all dependencies have been provided.