refactor(goose2): remove attachment preamble (#9052)

ui/goose2/tests/e2e/fixtures/tauri-mock.ts

@@ -47,6 +47,7 @@ export function buildInitScript(options?: {
           defaultModel: "claude-sonnet-4-20250514",
           configured: true,
           providerType: "Preferred",
+          category: "model",
           configKeys: [],
           setupSteps: [],
           supportsRefresh: true,
@@ -72,6 +73,7 @@ export function buildInitScript(options?: {
           defaultModel: "gpt-4.1",
           configured: true,
           providerType: "Preferred",
+          category: "model",
           configKeys: [],
           setupSteps: [],
           supportsRefresh: true,
@@ -203,6 +205,8 @@ export function buildInitScript(options?: {
           }
           case "_goose/providers/list":
             return jsonRpcResult(message.id, { entries: PROVIDER_INVENTORY });
+          case "_goose/providers/setup/catalog/list":
+            return jsonRpcResult(message.id, { providers: [] });
           case "_goose/providers/inventory/refresh":
             return jsonRpcResult(message.id, { started: [], skipped: [] });
           case "_goose/defaults/read":