fix(models): widen market_apps.skill_content to MEDIUMTEXT for large SKILL.md

backend/python/app/models.py

@@ -11,6 +11,7 @@ from sqlalchemy import (
     DECIMAL, UniqueConstraint
 )
 from sqlalchemy.orm import relationship
+from sqlalchemy.dialects.mysql import MEDIUMTEXT
 from .database import Base
 
 
@@ -299,7 +300,7 @@ class MarketApp(Base):
     rating_avg = Column(DECIMAL(3, 2), default=0.00)
     review_count = Column(Integer, default=0)
     install_count = Column(Integer, default=0)
-    skill_content = Column(Text, default=None)
+    skill_content = Column(MEDIUMTEXT, default=None)
     mcp_transport = Column(String(20), default=None)
     platform = Column(String(20), default=None, comment="Agent 接入平台：dify/n8n/coze")
     capability = Column(String(20), default=None, comment="能力分类：text/thinking/vision/tool/image/audio/asr/ocr/embedding/rerank/video")