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/services/auth_service.py

@@ -82,15 +82,38 @@ async def get_current_identity(
     return identity
 
 
-async def get_or_create_identity(db: AsyncSession, address: str) -> DuniterIdentity:
-    """Get an existing identity by address or create a new one."""
+async def get_or_create_identity(
+    db: AsyncSession,
+    address: str,
+    dev_profile: dict | None = None,
+) -> DuniterIdentity:
+    """Get an existing identity by address or create a new one.
+
+    If dev_profile is provided, apply the profile attributes on create or update.
+    """
     result = await db.execute(select(DuniterIdentity).where(DuniterIdentity.address == address))
     identity = result.scalar_one_or_none()
 
     if identity is None:
-        identity = DuniterIdentity(address=address)
+        kwargs: dict = {"address": address}
+        if dev_profile:
+            kwargs.update({
+                "display_name": dev_profile.get("display_name"),
+                "wot_status": dev_profile.get("wot_status", "unknown"),
+                "is_smith": dev_profile.get("is_smith", False),
+                "is_techcomm": dev_profile.get("is_techcomm", False),
+            })
+        identity = DuniterIdentity(**kwargs)
         db.add(identity)
         await db.commit()
         await db.refresh(identity)
+    elif dev_profile:
+        # Update existing identity with dev profile data
+        identity.display_name = dev_profile.get("display_name", identity.display_name)
+        identity.wot_status = dev_profile.get("wot_status", identity.wot_status)
+        identity.is_smith = dev_profile.get("is_smith", identity.is_smith)
+        identity.is_techcomm = dev_profile.get("is_techcomm", identity.is_techcomm)
+        await db.commit()
+        await db.refresh(identity)
 
     return identity