fix: livrable tickets #70 #100 #102 — UX surface scoping

- #70: implémentation suppression modèles locaux téléchargés
- #100: correction scroll OpenCode
- #102: correction fit TUI après switch/layout
- memory note scoping UX

frontend/src/adapters/modelServer.ts

@@ -32,6 +32,10 @@ export class TauriModelServerGateway implements ModelServerGateway {
     await invoke("delete_model_server", { serverId });
   }
 
+  async deleteModelArtifact(serverId: string): Promise<void> {
+    await invoke("delete_model_artifact", { serverId });
+  }
+
   previewModelServerCommand(
     config: LocalModelServerConfig,
   ): Promise<ModelServerCommandPreview> {