fix: parse linux distro metadata

apps/chanora_flutter/test/services/startup_dependency_check_test.dart

@@ -38,6 +38,25 @@ void main() {
     expect(sdl.installHints.single.command, 'sudo apt install libsdl2-2.0-0');
   });
 
+  test('distro detection parses quoted ID_LIKE lists', () async {
+    debugResetStartupDependencyCheck(
+      platformIsLinux: () => true,
+      libraryProbe: (candidate) => false,
+      fileExists: (_) async => true,
+      osReleaseProvider: () async => 'ID=rocky\nID_LIKE="fedora rhel"\n',
+      resolvedExecutableProvider: () => '/opt/chanora/chanora_flutter',
+      currentDirectoryProvider: () => '/tmp',
+    );
+
+    final result = await checkStartupDependencies();
+
+    expect(result.platformLabel, 'Fedora');
+    final sdl = result.issues.singleWhere(
+      (issue) => issue.id == 'linux-sdl2-runtime',
+    );
+    expect(sdl.installHints.single.command, 'sudo dnf install SDL2');
+  });
+
   test(
     'missing ONNX runtime is reported as recommended when SDL2 is present',
     () async {