📚 Documentação inicial do ALETHEIA

- MANUAL-PRODUTO.md: Manual do usuário final
- MANUAL-VENDAS.md: Estratégia comercial e vendas
- MANUAL-TECNICO.md: Infraestrutura e deploy
- README.md: Visão geral do projeto

backend/app/routers/auth.py

@@ -0,0 +1,43 @@
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+from app.database import get_db
+from app.models.user import User
+from app.schemas.auth import RegisterRequest, LoginRequest, TokenResponse, UserResponse
+from app.utils.security import hash_password, verify_password, create_access_token, get_current_user
+
+router = APIRouter(prefix="/api/auth", tags=["auth"])
+
+@router.post("/register", response_model=TokenResponse)
+async def register(req: RegisterRequest, db: AsyncSession = Depends(get_db)):
+    existing = await db.execute(select(User).where(User.email == req.email))
+    if existing.scalar_one_or_none():
+        raise HTTPException(status_code=400, detail="Email já cadastrado")
+    
+    user = User(email=req.email, name=req.name, password_hash=hash_password(req.password))
+    db.add(user)
+    await db.commit()
+    await db.refresh(user)
+    
+    token = create_access_token({"sub": str(user.id)})
+    return TokenResponse(
+        access_token=token,
+        user={"id": user.id, "email": user.email, "name": user.name, "is_premium": user.is_premium}
+    )
+
+@router.post("/login", response_model=TokenResponse)
+async def login(req: LoginRequest, db: AsyncSession = Depends(get_db)):
+    result = await db.execute(select(User).where(User.email == req.email))
+    user = result.scalar_one_or_none()
+    if not user or not verify_password(req.password, user.password_hash):
+        raise HTTPException(status_code=401, detail="Email ou senha incorretos")
+    
+    token = create_access_token({"sub": str(user.id)})
+    return TokenResponse(
+        access_token=token,
+        user={"id": user.id, "email": user.email, "name": user.name, "is_premium": user.is_premium}
+    )
+
+@router.get("/me", response_model=UserResponse)
+async def me(user: User = Depends(get_current_user)):
+    return UserResponse(id=user.id, email=user.email, name=user.name, is_premium=user.is_premium)