chore(project): 添加.gitignore文件并清理编译缓存 添加.gitignore文件以忽略uni-app编译产物(unpackage/dist/, unpackage/cache/)和依赖目录(node_modules/) 移除敏感证书配置文件和编译缓存文件,包括: - unpackage/cache/apk/apkurl - unpackage/cache/cmManifestCache.json - unpackage/cache/certdata - unpackage/cache/cloudcertificate/certini - 各种编译缓存和证书文件 ```