Dev mode: panneau connexion rapide avec 4 profils pre-configures

Ajout d'un panneau dev sous le login (Alice=membre, Bob=forgeron,
Charlie=comite tech, Dave=observateur) pour tester les differents
roles sans keypair Ed25519. Endpoint GET /auth/dev/profiles renvoie
les profils uniquement en ENVIRONMENT=development.

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

backend/app/routers/auth.py

@@ -27,6 +27,38 @@ from app.services.auth_service import (
 
 router = APIRouter()
 
+# ── Dev profiles (only available when ENVIRONMENT == "development") ─────────
+DEV_PROFILES = [
+    {
+        "address": "5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY",
+        "display_name": "Alice (Membre WoT)",
+        "wot_status": "member",
+        "is_smith": False,
+        "is_techcomm": False,
+    },
+    {
+        "address": "5FHneW46xGXgs5mUiveU4sbTyGBzmstUspZC92UhjJM694ty",
+        "display_name": "Bob (Forgeron)",
+        "wot_status": "member",
+        "is_smith": True,
+        "is_techcomm": False,
+    },
+    {
+        "address": "5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmkP7j4bJa3zN7d8tY",
+        "display_name": "Charlie (Comite Tech)",
+        "wot_status": "member",
+        "is_smith": True,
+        "is_techcomm": True,
+    },
+    {
+        "address": "5DAAnrj7VHTznn2AWBemMuyBwZWs6FNFjdyVXUeYum3PTXFy",
+        "display_name": "Dave (Observateur)",
+        "wot_status": "unknown",
+        "is_smith": False,
+        "is_techcomm": False,
+    },
+]
+
 # ── In-memory challenge store (short-lived, no persistence needed) ──────────
 # Structure: { address: { "challenge": str, "expires_at": datetime } }
 _pending_challenges: dict[str, dict] = {}
@@ -113,8 +145,11 @@ async def verify_challenge(
     # 5. Consume the challenge
     del _pending_challenges[payload.address]
 
-    # 6. Get or create identity
-    identity = await get_or_create_identity(db, payload.address)
+    # 6. Get or create identity (apply dev profile if available)
+    dev_profile = None
+    if settings.ENVIRONMENT == "development":
+        dev_profile = next((p for p in DEV_PROFILES if p["address"] == payload.address), None)
+    identity = await get_or_create_identity(db, payload.address, dev_profile=dev_profile)
 
     # 7. Create session token
     token = await create_session(db, identity)
@@ -125,6 +160,14 @@ async def verify_challenge(
     )
 
 
+@router.get("/dev/profiles")
+async def list_dev_profiles():
+    """List available dev profiles for quick login. Only available in development."""
+    if settings.ENVIRONMENT != "development":
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Not available")
+    return DEV_PROFILES
+
+
 @router.get("/me", response_model=IdentityOut)
 async def get_me(
     identity: DuniterIdentity = Depends(get_current_identity),