feat: v1.7.6 - Split Tunneling (Per-App Proxy) for Desktop

Flutter integration:
- Update SingboxConfigOption with per-app proxy fields
- Add perAppProxyMode, includedApplications, excludedApplications
- Read per-app settings from SharedPreferences
- Pass settings to libcore via HiddifyOptions

libcore backend:
- Implement ProcessName routing rules for desktop platforms
- Support include mode (whitelist) and exclude mode (blacklist)
- Only Chrome/Firefox/etc. specified by name use VPN

Version bump: 1.7.5 → 1.7.6
Update libcore submodule to include per-app proxy support

lib/features/config_option/data/config_option_repository.dart

@@ -334,6 +334,32 @@ abstract class ConfigOptions {
     "",
   );
 
+  // Per-App Proxy Settings (Desktop platforms)
+  static final perAppProxyMode = PreferencesNotifier.create<String, String>(
+    "per-app-proxy-mode",
+    "off",
+  );
+
+  static final perAppProxyIncludeList = PreferencesNotifier.create<List<String>, String>(
+    "per-app-proxy-include-list",
+    [],
+    mapFrom: (value) {
+      if (value.isEmpty) return [];
+      return value.split(',').map((e) => e.trim()).where((e) => e.isNotEmpty).toList();
+    },
+    mapTo: (value) => value.join(','),
+  );
+
+  static final perAppProxyExcludeList = PreferencesNotifier.create<List<String>, String>(
+    "per-app-proxy-exclude-list",
+    [],
+    mapFrom: (value) {
+      if (value.isEmpty) return [];
+      return value.split(',').map((e) => e.trim()).where((e) => e.isNotEmpty).toList();
+    },
+    mapTo: (value) => value.join(','),
+  );
+
   static final hasExperimentalFeatures = Provider.autoDispose<bool>(
     (ref) {
       final mode = ref.watch(serviceMode);
@@ -557,6 +583,10 @@ abstract class ConfigOptions {
           noiseSize: ref.watch(warpNoiseSize),
           noiseDelay: ref.watch(warpNoiseDelay),
         ),
+        // Per-App Proxy
+        perAppProxyMode: ref.watch(perAppProxyMode),
+        includedApplications: ref.watch(perAppProxyMode) == 'include' ? ref.watch(perAppProxyIncludeList) : [],
+        excludedApplications: ref.watch(perAppProxyMode) == 'exclude' ? ref.watch(perAppProxyExcludeList) : [],
         // geoipPath: ref.watch(geoAssetPathResolverProvider).relativePath(
         //       geoAssets.geoip.providerName,
         //       geoAssets.geoip.fileName,

lib/singbox/model/singbox_config_option.dart

@@ -52,6 +52,9 @@ class SingboxConfigOption with _$SingboxConfigOption {
     required SingboxTlsTricks tlsTricks,
     required SingboxWarpOption warp,
     required SingboxWarpOption warp2,
+    @JsonKey(name: 'per-app-proxy-mode') @Default('off') String perAppProxyMode,
+    @JsonKey(name: 'included-applications') @Default([]) List<String> includedApplications,
+    @JsonKey(name: 'excluded-applications') @Default([]) List<String> excludedApplications,
   }) = _SingboxConfigOption;
 
   String format() {