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/models/user.py

@@ -0,0 +1,39 @@
+"""User model."""
+
+import uuid
+from datetime import datetime
+
+from sqlalchemy import String, Boolean, DateTime, ForeignKey, func
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.db.base import Base
+
+
+class User(Base):
+    """Represents a user within a tenant account."""
+
+    __tablename__ = "users"
+
+    id: Mapped[str] = mapped_column(
+        String(36), primary_key=True, default=lambda: str(uuid.uuid4())
+    )
+    account_id: Mapped[str] = mapped_column(
+        String(36), ForeignKey("accounts.id", ondelete="CASCADE"), nullable=False
+    )
+    email: Mapped[str] = mapped_column(String(255), unique=True, nullable=False)
+    full_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    password_hash: Mapped[str] = mapped_column(String(255), nullable=False)
+    role_id: Mapped[str | None] = mapped_column(
+        String(36), ForeignKey("roles.id", ondelete="SET NULL"), nullable=True
+    )
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), nullable=False
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), onupdate=func.now(), nullable=False
+    )
+
+    # Relationships
+    account: Mapped["Account"] = relationship("Account", back_populates="users")
+    role: Mapped["Role | None"] = relationship("Role", back_populates="users")