fix(assistant): #91 le SSE renvoie le modele reellement utilise (tag fournisseur - modele complet)

backend/bookslm_routes.py

@@ -317,6 +317,22 @@ def _resolve_provider_name(requested: str | None) -> str | None:
     return None
 
 
+def _effective_model(provider: str | None, requested: str | None) -> str:
+    """Model actually used for a request.
+
+    The client may leave `model` empty (provider default) — reporting the raw
+    request would show nothing in the "provider · model" tag, so the provider's
+    configured default is returned instead.
+    """
+    if requested:
+        return requested
+    if not provider:
+        return ""
+    from backend.ai import PROVIDERS
+
+    return PROVIDERS.get(provider, {}).get("model", "") or ""
+
+
 def _tool_event_sse(rec) -> str:
     """Serialize one executed tool call as an SSE ``tool`` event."""
     payload = json.dumps(
@@ -407,7 +423,11 @@ async def api_bookslm_chat(
                 max_tokens=4096,
             ):
                 data = json.dumps(
-                    {"token": token, "provider": cfg_name, "model": req.model or ""},
+                    {
+                        "token": token,
+                        "provider": cfg_name,
+                        "model": _effective_model(cfg_name, req.model),
+                    },
                     ensure_ascii=False,
                 )
                 yield f"event: message\ndata: {data}\n\n"
@@ -532,7 +552,7 @@ async def api_bookslm_agent(
                     {
                         "token": result.content,
                         "provider": cfg_name,
-                        "model": req.model or "",
+                        "model": _effective_model(cfg_name, req.model),
                         "iterations": result.iterations,
                         "stopped": result.stopped,
                     },