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/schemas/user.py

@@ -0,0 +1,40 @@
+from datetime import datetime
+from pydantic import BaseModel, Field
+from typing import Optional
+
+
+class UserCreate(BaseModel):
+    username: str = Field(..., min_length=2, max_length=50)
+    display_name: str = Field(..., min_length=1, max_length=100)
+    password: str = Field(..., min_length=6)
+    email: Optional[str] = None
+    phone: Optional[str] = None
+    role: str = Field(default="developer", pattern="^(admin|dba|developer|guest)$")
+
+
+class UserUpdate(BaseModel):
+    display_name: Optional[str] = None
+    email: Optional[str] = None
+    phone: Optional[str] = None
+    role: Optional[str] = Field(default=None, pattern="^(admin|dba|developer|guest)$")
+    is_active: Optional[bool] = None
+
+
+class UserResponse(BaseModel):
+    id: int
+    username: str
+    display_name: str
+    email: Optional[str] = None
+    phone: Optional[str] = None
+    role: str
+    is_active: bool
+    last_login: Optional[datetime] = None
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class PasswordChange(BaseModel):
+    old_password: str
+    new_password: str = Field(..., min_length=6)