feat: Add base project structure with API and web components

api/app/models/appshare_model.py

@@ -0,0 +1,28 @@
+import datetime
+import uuid
+from sqlalchemy import Column, DateTime, ForeignKey
+from sqlalchemy.dialects.postgresql import UUID
+from app.db import Base
+from sqlalchemy.orm import relationship
+
+
+class AppShare(Base):
+    """应用分享模型
+    
+    记录应用从一个工作空间分享到另一个工作空间的关系
+    """
+    __tablename__ = "app_shares"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4, index=True)
+    source_app_id = Column(UUID(as_uuid=True), ForeignKey('apps.id', ondelete='CASCADE'), nullable=False, comment="源应用ID")
+    source_workspace_id = Column(UUID(as_uuid=True), ForeignKey('workspaces.id'), nullable=False, comment="源工作空间ID")
+    target_workspace_id = Column(UUID(as_uuid=True), ForeignKey('workspaces.id'), nullable=False, comment="目标工作空间ID")
+    shared_by = Column(UUID(as_uuid=True), ForeignKey('users.id'), nullable=False, comment="分享者用户ID")
+    created_at = Column(DateTime, default=datetime.datetime.now)
+    updated_at = Column(DateTime, default=datetime.datetime.now)
+
+    # Relationships
+    source_app = relationship("App", foreign_keys=[source_app_id], backref="shares")
+    source_workspace = relationship("Workspace", foreign_keys=[source_workspace_id])
+    target_workspace = relationship("Workspace", foreign_keys=[target_workspace_id])
+    shared_user = relationship("User", backref="app_shares")