feat(backend): CRUD variétés, plantations, tâches + tests

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/routers/varieties.py

@@ -1,2 +1,50 @@
-from fastapi import APIRouter
-router = APIRouter()
+from typing import List
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlmodel import Session, select
+from app.database import get_session
+from app.models.plant import PlantVariety
+
+router = APIRouter(tags=["variétés"])
+
+
+@router.get("/varieties", response_model=List[PlantVariety])
+def list_varieties(session: Session = Depends(get_session)):
+    return session.exec(select(PlantVariety)).all()
+
+
+@router.post("/varieties", response_model=PlantVariety, status_code=status.HTTP_201_CREATED)
+def create_variety(v: PlantVariety, session: Session = Depends(get_session)):
+    session.add(v)
+    session.commit()
+    session.refresh(v)
+    return v
+
+
+@router.get("/varieties/{id}", response_model=PlantVariety)
+def get_variety(id: int, session: Session = Depends(get_session)):
+    v = session.get(PlantVariety, id)
+    if not v:
+        raise HTTPException(status_code=404, detail="Variété introuvable")
+    return v
+
+
+@router.put("/varieties/{id}", response_model=PlantVariety)
+def update_variety(id: int, data: PlantVariety, session: Session = Depends(get_session)):
+    v = session.get(PlantVariety, id)
+    if not v:
+        raise HTTPException(status_code=404, detail="Variété introuvable")
+    for k, val in data.model_dump(exclude_unset=True, exclude={"id", "created_at"}).items():
+        setattr(v, k, val)
+    session.add(v)
+    session.commit()
+    session.refresh(v)
+    return v
+
+
+@router.delete("/varieties/{id}", status_code=status.HTTP_204_NO_CONTENT)
+def delete_variety(id: int, session: Session = Depends(get_session)):
+    v = session.get(PlantVariety, id)
+    if not v:
+        raise HTTPException(status_code=404, detail="Variété introuvable")
+    session.delete(v)
+    session.commit()