update:1.重构项目数据库初始化和迁移逻辑，使用Alembic数据库管理工具

backend/app/models/__init__.py

@@ -15,6 +15,7 @@ from app.models.mcp_plugin import MCPPlugin
 from app.models.user import User, UserPassword
 from app.models.regeneration_task import RegenerationTask
 from app.models.career import Career, CharacterCareer
+from app.models.prompt_template import PromptTemplate
 
 __all__ = [
     "Project",
@@ -38,5 +39,6 @@ __all__ = [
     "UserPassword",
     "RegenerationTask",
     "Career",
-    "CharacterCareer"
+    "CharacterCareer",
+    "PromptTemplate"
 ]