移除不必要的内容

CoreModules/database.py

@@ -124,17 +124,7 @@ class Database:
 
     def init_tables(self):
         """初始化数据库表"""
-        cursor = self.conn.cursor()
-        
-        # 用户表
-        cursor.execute("""
-            CREATE TABLE IF NOT EXISTS users (
-                user_id INTEGER PRIMARY KEY,
-                username TEXT,
-                created_at INTEGER NOT NULL,
-                last_active INTEGER NOT NULL
-            )
-        """)
+        pass
     
     def close(self):
         """关闭数据库连接"""

CoreModules/plugin_interface.py

@@ -16,7 +16,6 @@ config = ProjectConfig()
 
 class DatabaseModel(BaseModel):
     table_name: str = Field(default="main_table")
-    column_names: List[str] = Field(default=[])
     column_defs: Dict[str, str] = Field(default={})
 
 class PluginInterface(ABC):
@@ -47,8 +46,8 @@ class PluginInterface(ABC):
         db_model = self.register_db_model()
         if db_model:
             db.define_table(db_model.table_name)
-            for field in db_model.column_names:
-                db.define_column(db_model.table_name, field, db_model.column_defs[field])
+            for name, field_def in db_model.column_defs.items():
+                db.define_column(db_model.table_name, name, field_def)
 
         return router