feat: CMDB full-stack app - FastAPI + PostgreSQL + React

- PostgreSQL schema: 14 tables, JSONB attributes, audit triggers, soft delete
- FastAPI backend: CRUD, search/filter, relationship graph, bulk import, JWT RBAC
- React frontend: CI table, detail card, force-graph, dashboard
- Seed data: homelab scenario (Proxmox, Mikrotik, VMs, services)
- Docker Compose + Kubernetes manifests
- 20 backend tests (pytest + httpx)

backend/app/middleware/auth.py

@@ -0,0 +1,69 @@
+from datetime import datetime, timedelta
+from typing import Optional
+from uuid import UUID
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+from fastapi import Depends, HTTPException, status
+from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+from app.config import get_settings
+from app.database import get_db
+from app.models.models import User
+
+settings = get_settings()
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+security = HTTPBearer()
+
+
+def hash_password(password: str) -> str:
+    return pwd_context.hash(password)
+
+
+def verify_password(plain: str, hashed: str) -> bool:
+    return pwd_context.verify(plain, hashed)
+
+
+def create_access_token(user_id: UUID, role: str, expires_delta: Optional[timedelta] = None) -> str:
+    expire = datetime.utcnow() + (expires_delta or timedelta(minutes=settings.JWT_EXPIRATION_MINUTES))
+    payload = {
+        "sub": str(user_id),
+        "role": role,
+        "exp": expire,
+    }
+    return jwt.encode(payload, settings.JWT_SECRET, algorithm=settings.JWT_ALGORITHM)
+
+
+def decode_token(token: str) -> dict:
+    try:
+        return jwt.decode(token, settings.JWT_SECRET, algorithms=[settings.JWT_ALGORITHM])
+    except JWTError:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid token")
+
+
+async def get_current_user(
+    credentials: HTTPAuthorizationCredentials = Depends(security),
+    db: AsyncSession = Depends(get_db),
+) -> User:
+    payload = decode_token(credentials.credentials)
+    user_id = payload.get("sub")
+    result = await db.execute(select(User).where(User.id == UUID(user_id)))
+    user = result.scalar_one_or_none()
+    if not user or user.deleted_at:
+        raise HTTPException(status_code=401, detail="User not found")
+    return user
+
+
+class RequireRole:
+    def __init__(self, *allowed_roles: str):
+        self.allowed_roles = allowed_roles
+
+    async def __call__(self, user: User = Depends(get_current_user)) -> User:
+        if user.role not in self.allowed_roles:
+            raise HTTPException(status_code=403, detail="Insufficient permissions")
+        return user
+
+
+require_admin = RequireRole("admin")
+require_editor = RequireRole("admin", "editor")
+require_viewer = RequireRole("admin", "editor", "viewer")