Add core debug flag

lib/data/data_providers.dart

@@ -1,5 +1,6 @@
 import 'package:dio/dio.dart';
 import 'package:hiddify/core/core_providers.dart';
+import 'package:hiddify/core/prefs/general_prefs.dart';
 import 'package:hiddify/data/api/clash_api.dart';
 import 'package:hiddify/data/local/dao/dao.dart';
 import 'package:hiddify/data/local/database.dart';
@@ -61,5 +62,6 @@ CoreFacade coreFacade(CoreFacadeRef ref) => CoreFacadeImpl(
       ref.watch(singboxServiceProvider),
       ref.watch(filesEditorServiceProvider),
       ref.watch(clashApiProvider),
+      ref.read(debugModeNotifierProvider),
       () => ref.read(configOptionsProvider),
     );

lib/data/repository/core_facade_impl.dart

@@ -18,12 +18,14 @@ class CoreFacadeImpl with ExceptionHandler, InfraLogger implements CoreFacade {
     this.singbox,
     this.filesEditor,
     this.clash,
+    this.debug,
     this.configOptions,
   );
 
   final SingboxService singbox;
   final FilesEditorService filesEditor;
   final ClashApi clash;
+  final bool debug;
   final ConfigOptions Function() configOptions;
 
   bool _initialized = false;
@@ -39,6 +41,7 @@ class CoreFacadeImpl with ExceptionHandler, InfraLogger implements CoreFacade {
               filesEditor.dirs.baseDir.path,
               filesEditor.dirs.workingDir.path,
               filesEditor.dirs.tempDir.path,
+              debug,
             )
             .map((r) {
               loggy.debug("setup complete");

lib/gen/singbox_generated_bindings.dart

@@ -871,27 +871,33 @@ class SingboxNativeLibrary {
   late final _setupOnce =
       _setupOncePtr.asFunction<void Function(ffi.Pointer<ffi.Void>)>();
 
-  void setup(
+  ffi.Pointer<ffi.Char> setup(
     ffi.Pointer<ffi.Char> baseDir,
     ffi.Pointer<ffi.Char> workingDir,
     ffi.Pointer<ffi.Char> tempDir,
     int statusPort,
+    int debug,
   ) {
     return _setup(
       baseDir,
       workingDir,
       tempDir,
       statusPort,
+      debug,
     );
   }
 
   late final _setupPtr = _lookup<
       ffi.NativeFunction<
-          ffi.Void Function(ffi.Pointer<ffi.Char>, ffi.Pointer<ffi.Char>,
-              ffi.Pointer<ffi.Char>, ffi.LongLong)>>('setup');
+          ffi.Pointer<ffi.Char> Function(
+              ffi.Pointer<ffi.Char>,
+              ffi.Pointer<ffi.Char>,
+              ffi.Pointer<ffi.Char>,
+              ffi.LongLong,
+              GoUint8)>>('setup');
   late final _setup = _setupPtr.asFunction<
-      void Function(ffi.Pointer<ffi.Char>, ffi.Pointer<ffi.Char>,
-          ffi.Pointer<ffi.Char>, int)>();
+      ffi.Pointer<ffi.Char> Function(ffi.Pointer<ffi.Char>,
+          ffi.Pointer<ffi.Char>, ffi.Pointer<ffi.Char>, int, int)>();
 
   ffi.Pointer<ffi.Char> parse(
     ffi.Pointer<ffi.Char> path,

lib/services/singbox/ffi_singbox_service.dart

@@ -66,18 +66,26 @@ class FFISingboxService
     String baseDir,
     String workingDir,
     String tempDir,
+    bool debug,
   ) {
     final port = _connectionStatusReceiver.sendPort.nativePort;
     return TaskEither(
       () => CombineWorker().execute(
         () {
           _box.setupOnce(NativeApi.initializeApiDLData);
-          _box.setup(
-            baseDir.toNativeUtf8().cast(),
-            workingDir.toNativeUtf8().cast(),
-            tempDir.toNativeUtf8().cast(),
-            port,
-          );
+          final err = _box
+              .setup(
+                baseDir.toNativeUtf8().cast(),
+                workingDir.toNativeUtf8().cast(),
+                tempDir.toNativeUtf8().cast(),
+                port,
+                debug ? 1 : 0,
+              )
+              .cast<Utf8>()
+              .toDartString();
+          if (err.isNotEmpty) {
+            return left(err);
+          }
           return right(unit);
         },
       ),

lib/services/singbox/mobile_singbox_service.dart

@@ -38,6 +38,7 @@ class MobileSingboxService
     String baseDir,
     String workingDir,
     String tempDir,
+    bool debug,
   ) =>
       TaskEither.of(unit);
 

lib/services/singbox/singbox_service.dart

@@ -22,6 +22,7 @@ abstract interface class SingboxService {
     String baseDir,
     String workingDir,
     String tempDir,
+    bool debug,
   );
 
   TaskEither<String, Unit> parseConfig(