feat: 新增測試覆蓋率配置並更新相關依賴

Author: c-c-epr

.gitignore

@@ -29,3 +29,8 @@ Thumbs.db
 
 # Build outputs
 *.js.map
+
+# Test coverage
+coverage/
+coverage-final.json
+lcov.info

package-lock.json

@@ -8,6 +8,7 @@
     "types:check": "npm run types:sync && git diff --exit-code -- worker-configuration.d.ts",
     "test": "vitest",
     "test:run": "vitest run",
+    "test:coverage": "vitest run --coverage",
     "format": "prettier . --write",
     "format:check": "prettier . --check",
     "typecheck": "tsc --noEmit",
@@ -22,6 +23,7 @@
     "prettier": "^3.8.3",
     "typescript": "^6.0.3",
     "vitest": "^4.1.4",
+    "@vitest/coverage-v8": "^4.1.4",
     "wrangler": "^4.83.0"
   },
   "dependencies": {

package.json

@@ -0,0 +1,12 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  test: {
+    coverage: {
+      provider: "v8",
+      reporter: ["text", "html"],
+      include: ["src/**/*.ts"],
+      exclude: ["src/**/*.test.ts", "src/**/__tests__/**"],
+    },
+  },
+});