refactor(database): 重构数据库存储实现，使用SQLAlchemy ORM替代原始SQL操作

- 删除旧的async_db.py和async_sqlite_db.py实现
- 新增SQLAlchemy ORM模型和数据库会话管理
- 统一各平台存储实现到_store_impl.py文件
- 添加数据库初始化功能支持
- 更新.gitignore和pyproject.toml依赖配置
- 优化文件存储路径和命名规范

config/db_config.py

@@ -18,6 +18,14 @@ MYSQL_DB_HOST = os.getenv("MYSQL_DB_HOST", "localhost")
 MYSQL_DB_PORT = os.getenv("MYSQL_DB_PORT", 3306)
 MYSQL_DB_NAME = os.getenv("MYSQL_DB_NAME", "media_crawler")
 
+mysql_db_config = {
+    "user": MYSQL_DB_USER,
+    "password": MYSQL_DB_PWD,
+    "host": MYSQL_DB_HOST,
+    "port": MYSQL_DB_PORT,
+    "db_name": MYSQL_DB_NAME,
+}
+
 
 # redis config
 REDIS_DB_HOST = "127.0.0.1"  # your redis host
@@ -30,4 +38,8 @@ CACHE_TYPE_REDIS = "redis"
 CACHE_TYPE_MEMORY = "memory"
 
 # sqlite config
-SQLITE_DB_PATH = os.path.join(os.path.dirname(os.path.dirname(__file__)), "schema", "sqlite_tables.db")
+SQLITE_DB_PATH = os.path.join(os.path.dirname(os.path.dirname(__file__)), "database", "sqlite_tables.db")
+
+sqlite_db_config = {
+    "db_path": SQLITE_DB_PATH
+}