M1: 桥引擎单测跑通，桥核心覆盖率 87.3%（T-M1-08 完成，R-18 处置）

- 修复 2 个测试用例（漏先触发 flushMessageQueue 注册 _fetchQueue 回调）
- 补 set_default/remove、FakeWebController、send 用例，共 15 用例全通过
- 桥核心覆盖率 87.3%（MessageCodec/Message 100%、BridgeController 83%、
  HandlerRegistry 88%）≥80% 达标；Adapter/BridgeJsLoader 系统耦合由 V1 真机覆盖
- scripts/test.sh：本地单测 + 覆盖率运行脚本（devecocli 无 test，用 DevEco hvigorw
  + 强制 DEVECO_SDK_HOME 指向自带 sdk）；ci.sh 集成单测（SKIP_TESTS=1 可跳过）

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

entry/src/test/Bridge.test.ets

@@ -67,6 +67,34 @@ export default function bridgeTest() {
       r.default()('x', (d) => { resp = d; });
       expect(resp).assertEqual('');
     });
+
+    it('set_default_and_remove', 0, () => {
+      const r = new HandlerRegistry();
+      let v = '';
+      r.setDefault((d, cb) => cb('D:' + d));
+      r.default()('x', (s) => { v = s; });
+      expect(v).assertEqual('D:x');
+      r.put('a', (_d, cb) => cb('A'));
+      expect(r.size()).assertEqual(1);
+      r.remove('a');
+      expect(r.has('a')).assertFalse();
+    });
+  });
+
+  describe('FakeWebController', () => {
+    it('records_and_clears', 0, () => {
+      const f = new FakeWebController();
+      expect(f.lastScript() === undefined).assertTrue();
+      f.runJavaScript('s1');
+      f.loadUrl('u1');
+      expect(f.scripts.length).assertEqual(1);
+      expect(f.loadedUrls.length).assertEqual(1);
+      expect(f.lastScript()).assertEqual('s1');
+      f.dispose();
+      f.clear();
+      expect(f.scripts.length).assertEqual(0);
+      expect(f.lastScript() === undefined).assertTrue();
+    });
   });
 
   describe('BridgeController', () => {
@@ -104,6 +132,16 @@ export default function bridgeTest() {
       expect(last.includes('getlocationinfo')).assertTrue();
     });
 
+    it('send_no_handlerName', 0, () => {
+      const fake = new FakeWebController();
+      const bridge = new BridgeController(fake);
+      bridge.onPageEnd();
+      bridge.send('hello');
+      const last = fake.lastScript() ?? '';
+      expect(last.includes('_handleMessageFromNative')).assertTrue();
+      expect(last.includes('hello')).assertTrue();
+    });
+
     it('startup_queue_flush_after_onPageEnd', 0, () => {
       const fake = new FakeWebController();
       const bridge = new BridgeController(fake);
@@ -128,6 +166,8 @@ export default function bridgeTest() {
       const m = sent.match(/JAVA_CB_[0-9]+_[0-9]+/);
       expect(m !== null).assertTrue();
       const cbId = m![0];
+      // 先触发 flushMessageQueue 注册 _fetchQueue 回调，回执经队列机制路由
+      bridge.onLoadIntercept('yy://__queue__/');
       bridge.onLoadIntercept('yy://return/_fetchQueue/' +
         encodeURIComponent('[{"responseId":"' + cbId + '","responseData":"1700"}]'));
       expect(resp).assertEqual('1700');
@@ -137,6 +177,8 @@ export default function bridgeTest() {
       const fake = new FakeWebController();
       const bridge = new BridgeController(fake);
       bridge.onPageEnd();
+      // 先触发 flushMessageQueue 注册 _fetchQueue 回调
+      bridge.onLoadIntercept('yy://__queue__/');
       // 未注册的 handler 名 → 默认兜底，不抛错
       bridge.onLoadIntercept('yy://return/_fetchQueue/' +
         encodeURIComponent('[{"handlerName":"finsh","data":"","callbackId":"cb9"}]'));