upgrade architecture

backend/app/routers/architecture.py

@@ -45,8 +45,13 @@ class ArchitectureNodeResponse(BaseModel):
 
 
 class ArchitectureWorldPayload(BaseModel):
-    items: List[Dict[str, Any]]
+    # Format v1 (legacy)
+    items: Optional[List[Dict[str, Any]]] = None
     splines: Optional[List[Dict[str, Any]]] = None
+    # Format v2 (Vue Flow)
+    nodes: Optional[List[Dict[str, Any]]] = None
+    edges: Optional[List[Dict[str, Any]]] = None
+    version: Optional[int] = None
 
 
 @router.get("/nodes", response_model=List[ArchitectureNodeResponse])
@@ -122,11 +127,25 @@ async def get_world():
 
 @router.post("/world")
 async def save_world(payload: ArchitectureWorldPayload):
-    """Sauvegarde les éléments du world dans architecture.json."""
+    """Sauvegarde les éléments du world dans architecture.json.
+    Accepte le format v1 (items/splines) ou v2 (nodes/edges)."""
     ensure_world_file()
-    splines = payload.splines or []
-    WORLD_FILE.write_text(
-        json.dumps({"items": payload.items, "splines": splines}, indent=2),
-        encoding="utf-8"
-    )
-    return {"status": "ok", "count": len(payload.items), "splines": len(splines)}
+
+    if payload.version and payload.version >= 2:
+        # Format v2 (Vue Flow)
+        data = {
+            "nodes": payload.nodes or [],
+            "edges": payload.edges or [],
+            "version": payload.version,
+        }
+        WORLD_FILE.write_text(json.dumps(data, indent=2), encoding="utf-8")
+        return {"status": "ok", "nodes": len(data["nodes"]), "edges": len(data["edges"])}
+    else:
+        # Format v1 (legacy)
+        items = payload.items or []
+        splines = payload.splines or []
+        WORLD_FILE.write_text(
+            json.dumps({"items": items, "splines": splines}, indent=2),
+            encoding="utf-8"
+        )
+        return {"status": "ok", "count": len(items), "splines": len(splines)}