feat(skills and model):

1. Add the "Skills" module;
 2. The loading of the model square has been modified to be controlled through environment variables;
 3. Dynamic scheduling of the skill binding tool;
 4. Agent Integration Skills

api/app/models/skill_model.py

@@ -0,0 +1,37 @@
+"""Skill 模型定义"""
+import datetime
+import uuid
+from sqlalchemy import Column, String, Boolean, DateTime, Text, ForeignKey
+from sqlalchemy.dialects.postgresql import UUID, JSON
+
+from app.db import Base
+
+
+class Skill(Base):
+    """技能模型 - 可以关联工具（内置、MCP、自定义）"""
+    __tablename__ = "skills"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4, index=True)
+    name = Column(String, nullable=False, comment="技能名称")
+    description = Column(Text, comment="技能描述")
+    tenant_id = Column(UUID(as_uuid=True), ForeignKey("tenants.id"), nullable=False, index=True, comment="租户ID")
+    
+    # 关联的工具
+    tools = Column(JSON, default=list, comment="关联的工具列表")
+    
+    # 技能配置
+    config = Column(JSON, default=dict, comment="技能配置")
+    
+    # 专属提示词
+    prompt = Column(Text, comment="技能专属提示词")
+    
+    # 状态
+    is_active = Column(Boolean, default=True, nullable=False, comment="是否激活")
+    is_public = Column(Boolean, default=False, nullable=False, comment="是否公开到市场")
+    
+    # 时间戳
+    created_at = Column(DateTime, default=datetime.datetime.now, comment="创建时间")
+    updated_at = Column(DateTime, default=datetime.datetime.now, onupdate=datetime.datetime.now, comment="更新时间")
+
+    def __repr__(self):
+        return f"<Skill(id={self.id}, name={self.name})>"