Initial commit: Rentman Clone - Phase 0-6 (T001-T023)

Completed:
- Phase 0: Project Setup (T001-T003) - Docker Compose, FastAPI skeleton, React SPA
- Phase 1: Auth System (T004-T008) - DB models, JWT auth, RBAC middleware, user management
- Phase 2: Contacts & Tags (T009-T011) - CRUD API + UI
- Phase 3: Equipment Catalog (T012-T014) - Models, API, UI with barcode/QR
- Phase 4: Crew Management (T015-T017) - Models, availability, UI
- Phase 5: Vehicle Fleet (T018-T020) - Models, assignments, UI
- Phase 6: Projects (T021-T023) - Project hierarchy models, CRUD API, list/detail UI

backend/app/core/security.py

@@ -0,0 +1,46 @@
+"""Security helpers: password hashing and JWT token management."""
+
+from datetime import datetime, timedelta, timezone
+from typing import Any
+
+from jose import jwt
+from passlib.context import CryptContext
+
+from app.core.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    """Verify a plaintext password against a bcrypt hash."""
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    """Hash a password using bcrypt."""
+    return pwd_context.hash(password)
+
+
+def create_access_token(subject: str | Any, expires_delta: timedelta | None = None) -> str:
+    """Create a short-lived JWT access token."""
+    if expires_delta is None:
+        expires_delta = timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+    now = datetime.now(timezone.utc)
+    expire = now + expires_delta
+    to_encode = {"exp": expire, "sub": str(subject), "iat": now, "type": "access"}
+    return jwt.encode(to_encode, settings.JWT_SECRET_KEY, algorithm=settings.JWT_ALGORITHM)
+
+
+def create_refresh_token(subject: str | Any, expires_delta: timedelta | None = None) -> str:
+    """Create a long-lived JWT refresh token."""
+    if expires_delta is None:
+        expires_delta = timedelta(minutes=settings.REFRESH_TOKEN_EXPIRE_MINUTES)
+    now = datetime.now(timezone.utc)
+    expire = now + expires_delta
+    to_encode = {"exp": expire, "sub": str(subject), "iat": now, "type": "refresh"}
+    return jwt.encode(to_encode, settings.JWT_SECRET_KEY, algorithm=settings.JWT_ALGORITHM)
+
+
+def verify_token(token: str) -> dict:
+    """Decode and verify a JWT token. Returns the payload dict."""
+    return jwt.decode(token, settings.JWT_SECRET_KEY, algorithms=[settings.JWT_ALGORITHM])