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/instance.py

@@ -0,0 +1,22 @@
+from sqlalchemy import Column, Integer, String, Text, DateTime, func
+
+from app.core.database import Base
+
+
+class Instance(Base):
+    __tablename__ = "instances"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    name = Column(String(100), nullable=False)
+    db_type = Column(String(20), nullable=False)  # mysql / postgres / redis / mongo
+    host = Column(String(200), nullable=False)
+    port = Column(Integer, nullable=False)
+    username = Column(String(100), nullable=False)
+    password = Column(String(500), nullable=False)  # encrypted
+    database = Column(String(100), nullable=True)
+    env = Column(String(20), default="development")  # production / staging / development
+    description = Column(Text, nullable=True)
+    status = Column(String(20), default="disconnected")  # connected / disconnected / error
+    version = Column(String(50), nullable=True)
+    created_at = Column(DateTime, server_default=func.now())
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())