Initial commit: SQL audit platform v0.1.0

FastAPI backend with auth, user, instance, ticket, query, dashboard APIs.
React + TypeScript frontend with mock data UI (10 pages).
SQLite + async SQLAlchemy, JWT auth, role-based access control.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/app/models/audit_log.py

@@ -0,0 +1,16 @@
+from sqlalchemy import Column, Integer, String, Text, DateTime, func
+
+from app.core.database import Base
+
+
+class AuditLog(Base):
+    __tablename__ = "audit_logs"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    user_id = Column(Integer, nullable=False)
+    action = Column(String(50), nullable=False)
+    target_type = Column(String(50), nullable=False)  # ticket / instance / user / query
+    target_id = Column(Integer, nullable=True)
+    detail = Column(Text, nullable=True)
+    ip_address = Column(String(50), nullable=True)
+    created_at = Column(DateTime, server_default=func.now())