fix: 修复测试无法自然退出 — forceExit + 减少延迟 + 拆分 coverage

- jest.config.cjs: forceExit:true + testTimeout:15000

- package.json: npm test 默认不再 --coverage

- tests/utils.test.ts: debounce 延迟 50->20, 100->50

jest.config.cjs

@@ -20,4 +20,7 @@ module.exports = {
   coverageDirectory: 'coverage',
   coverageReporters: ['text', 'lcov'],
   verbose: true,
+  // Must have: fake-indexeddb + debounce timers keep event loop alive
+  forceExit: true,
+  testTimeout: 15000,
 };

package.json

@@ -24,7 +24,8 @@
   "scripts": {
     "build": "rollup -c",
     "dev": "rollup -c -w",
-    "test": "jest --coverage",
+    "test": "jest",
+    "test:coverage": "jest --coverage",
     "test:watch": "jest --watch",
     "lint": "eslint \"src/**/*.ts\"",
     "lint:fix": "eslint \"src/**/*.ts\" --fix",

tests/utils.test.ts

@@ -40,25 +40,25 @@ describe('escapeHTML', () => {
 describe('debounce', () => {
   test('延迟执行', (done) => {
     let called = 0;
-    const fn = debounce(() => { called++; }, 50);
+    const fn = debounce(() => { called++; }, 20);
     fn();
     expect(called).toBe(0);
     setTimeout(() => {
       expect(called).toBe(1);
       done();
-    }, 100);
+    }, 50);
   });
 
   test('多次调用只执行最后一次', (done) => {
     let result = 0;
-    const fn = debounce((v: number) => { result = v; }, 50);
+    const fn = debounce((v: number) => { result = v; }, 20);
     fn(1);
     fn(2);
     fn(3);
     setTimeout(() => {
       expect(result).toBe(3);
       done();
-    }, 100);
+    }, 50);
   });
 });