feat: 更新 H5 线路配置逻辑，添加默认线路处理和相关单元测试

test/widget_test.dart

@@ -20,6 +20,30 @@ void main() {
     expect(Uri.parse(lines.first.url).path, '/');
   });
 
+  test('uses current non-local service origin as default H5 line', () {
+    final urls = AppConfig.defaultH5LineUrlsForBaseUri(
+      Uri.parse('https://app.example.com/shell/index.html?from=local#hash'),
+    );
+
+    expect(urls, ['https://app.example.com/']);
+  });
+
+  test('preserves current service port when building default H5 line', () {
+    final urls = AppConfig.defaultH5LineUrlsForBaseUri(
+      Uri.parse('https://chat.example.com:8443/app/'),
+    );
+
+    expect(urls, ['https://chat.example.com:8443/']);
+  });
+
+  test('keeps fixed bootstrap H5 line for local browser access', () {
+    final urls = AppConfig.defaultH5LineUrlsForBaseUri(
+      Uri.parse('http://localhost:3000/'),
+    );
+
+    expect(urls, ['https://h5-test.imharry.work/']);
+  });
+
   test('uses fixed client config query parameters', () {
     expect(AppConfig.clientConfigQueryPayload, {
       'device': 'h5',
@@ -31,6 +55,20 @@ void main() {
     );
   });
 
+  test('builds client config query APIs from current service origin', () {
+    final uris = AppConfig.clientConfigQueryUrisForHomeUri(
+      Uri.parse('https://app.example.com/app/index.html?from=local#hash'),
+    );
+
+    expect(
+      uris.map((uri) => uri.toString()),
+      [
+        'https://app.example.com/client_config/query',
+        'https://app.example.com/api/user/client_config/query',
+      ],
+    );
+  });
+
   test('splits client config resourceUrl into indexed H5 lines', () {
     final lines = AppConfig.h5LinesFromResourceUrl(
       'line-one.example\nhttps://line-two.example/app\n\nline-three.example',