feat(admin/models): delete an added model with inline confirm

Backend: AiModelRepository.delete() + DELETE /api/admin/models/{id} (owner-only,
audited) in the RPC-served admin router; session commits per request.
Frontend: api.adminDeleteModel() (WebSocket RPC DELETE) and a per-row حذف
action with a two-step inline confirm (تأیید حذف / انصراف) that removes the
row from state on success. tsc clean, py_compile clean.

apps/api/app/infrastructure/repositories/ai_control.py

@@ -281,6 +281,14 @@ class AiModelRepository:
         await self.session.flush()
         return _model_to_domain(row)
 
+    async def delete(self, model_id: str) -> bool:
+        row = await self.session.get(AiModelRow, model_id)
+        if row is None:
+            return False
+        await self.session.delete(row)
+        await self.session.flush()
+        return True
+
     async def pick_for_mode(self, mode: RoutingMode) -> AiModel | None:
         """Choose a model for a routing mode.
 

apps/api/app/interfaces/http/routers/admin.py

@@ -215,6 +215,28 @@ async def create_model(
     return _model_out(model)
 
 
+@router.delete("/models/{model_id}", status_code=status.HTTP_200_OK)
+async def delete_model(
+    model_id: str,
+    request: Request,
+    owner: User = Depends(require_platform_owner),
+    session: AsyncSession = Depends(get_session),
+) -> dict:
+    repo = AiModelRepository(session)
+    existing = await repo.get(model_id)
+    if existing is None:
+        raise NotFoundError("مدلی با این شناسه یافت نشد.")
+    await repo.delete(model_id)
+    ip, ua = client_meta(request)
+    await record_audit(
+        session, action=AuditAction.MODEL_CHANGE, actor_user_id=owner.id,
+        target_type="model", target_id=model_id,
+        metadata={"internal_name": existing.internal_name, "deleted": True},
+        ip=ip, user_agent=ua,
+    )
+    return {"ok": True}
+
+
 # ---------------------------------------------------------------------------
 # Routing policies
 # ---------------------------------------------------------------------------

apps/web/src/app/(app)/admin/models/page.tsx

@@ -120,6 +120,9 @@ export default function AdminModelsPage() {
    *  list updated without hunting for it (the list sits below the form). */
   const [justAddedId, setJustAddedId] = React.useState<string | null>(null);
   const listRef = React.useRef<HTMLDivElement | null>(null);
+  /** Inline delete-confirmation: which row is armed, and which is in flight. */
+  const [confirmId, setConfirmId] = React.useState<string | null>(null);
+  const [deletingId, setDeletingId] = React.useState<string | null>(null);
 
   const load = React.useCallback(async () => {
     setLoading(true);
@@ -272,6 +275,19 @@ export default function AdminModelsPage() {
     }
   };
 
+  const onDelete = async (model: AdminModel) => {
+    setDeletingId(model.id);
+    try {
+      await api.adminDeleteModel(model.id);
+      setModels((current) => current.filter((m) => m.id !== model.id));
+      setConfirmId(null);
+    } catch (err) {
+      setFormError(err instanceof ApiError ? err.message : "حذف مدل ناموفق بود.");
+    } finally {
+      setDeletingId(null);
+    }
+  };
+
   const selectedFamily = groupedModels.find((g) => g.base === modelId);
   const efforts: ReasoningEffort[] = selectedFamily
     ? (selectedFamily.efforts as ReasoningEffort[])
@@ -443,6 +459,7 @@ export default function AdminModelsPage() {
                   <th className="px-2 py-2 text-right font-medium">ورودی</th>
                   <th className="px-2 py-2 text-right font-medium">خروجی</th>
                   <th className="px-2 py-2 text-right font-medium">وضعیت</th>
+                  <th className="px-2 py-2 text-right font-medium">عملیات</th>
                 </tr>
               </thead>
               <tbody className="anim-stagger">
@@ -487,6 +504,40 @@ export default function AdminModelsPage() {
                         {model.is_active ? "فعال" : "غیرفعال"}
                       </Badge>
                     </td>
+                    <td className="px-2 py-2">
+                      {confirmId === model.id ? (
+                        <div className="flex items-center gap-2">
+                          <Button
+                            type="button"
+                            size="sm"
+                            variant="danger"
+                            loading={deletingId === model.id}
+                            onClick={() => void onDelete(model)}
+                          >
+                            تأیید حذف
+                          </Button>
+                          <Button
+                            type="button"
+                            size="sm"
+                            variant="ghost"
+                            disabled={deletingId === model.id}
+                            onClick={() => setConfirmId(null)}
+                          >
+                            انصراف
+                          </Button>
+                        </div>
+                      ) : (
+                        <Button
+                          type="button"
+                          size="sm"
+                          variant="ghost"
+                          className="text-danger hover:bg-danger/10"
+                          onClick={() => setConfirmId(model.id)}
+                        >
+                          حذف
+                        </Button>
+                      )}
+                    </td>
                   </tr>
                 ))}
               </tbody>

apps/web/src/lib/api.ts

@@ -518,6 +518,10 @@ export const api = {
       method: "POST",
       body,
     }),
+  adminDeleteModel: (modelId: string) =>
+    apiRequest<void>(`/api/admin/models/${encodeURIComponent(modelId)}`, {
+      method: "DELETE",
+    }),
   adminRoutingPolicies: () =>
     apiRequest<import("@agy/contracts").AdminRoutingPolicy[]>("/api/admin/routing-policies"),
   adminCreateRoutingPolicy: (body: {