Add CI pipeline to test and upload coverage

package.json

@@ -7,6 +7,7 @@
     "preview": "vite preview",
     "test": "vitest",
     "serve": "vue-cli-service serve",
+    "coverage": "vitest run --coverage",
     "build-only": "vite build",
     "type-check": "vue-tsc --noEmit",
     "lint": "eslint . --ext .vue,.js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts --ignore-path .gitignore",
@@ -34,6 +35,7 @@
     "@types/qrcode": "^1.5.0",
     "@vitejs/plugin-vue": "^3.1.2",
     "@vitejs/plugin-vue-jsx": "^2.0.1",
+    "@vitest/coverage-c8": "^0.28.2",
     "@vue/eslint-config-prettier": "^7.0.0",
     "@vue/eslint-config-typescript": "^11.0.0",
     "@vue/test-utils": "^2.2.7",