test(coding-agent): updated test harnesses for composer shape methods

- Add syncComposerShape and getComposerShapes stubs to test mocks and harnesses.

packages/coding-agent/test/modes/controllers/extension-ui-controller.test.ts

@@ -50,6 +50,7 @@ function makeHarness() {
 			uiContext = context;
 		},
 		addAutocompleteProvider,
+		syncComposerShape: vi.fn(),
 	} as unknown as InteractiveModeContext;
 
 	const controller = new ExtensionUiController(ctx);

packages/coding-agent/test/repro-issue-1020-ctx-shutdown.test.ts

@@ -29,10 +29,12 @@ describe("issue #1020 - ctx.shutdown() in interactive mode", () => {
 			): void {
 				capturedContextActions = contextActions;
 			},
+			getComposerShapes: () => [],
 		};
 
 		const ctxStub = {
 			shutdownRequested: false,
+			syncComposerShape: () => {},
 			session: {
 				extensionRunner: fakeExtensionRunner,
 				// other session fields are only touched lazily by other actions; we
@@ -64,11 +66,13 @@ describe("issue #1020 - ctx.shutdown() in interactive mode", () => {
 				capturedContextActions = contextActions;
 			},
 			onError(_handler: (error: unknown) => void): void {},
+			getComposerShapes: () => [],
 			async emit(_event: unknown): Promise<void> {},
 		};
 
 		const ctxStub = {
 			shutdownRequested: false,
+			syncComposerShape: () => {},
 			session: {
 				extensionRunner: fakeExtensionRunner,
 			},

packages/coding-agent/test/repro-issue-1955-sendmessage-double-render.test.ts

@@ -85,6 +85,7 @@ function createHarness(): Harness {
 		emit: async () => undefined,
 		getMessageRenderer: () => undefined,
 		getAssistantThinkingRenderers: () => undefined,
+		getComposerShapes: () => [],
 	};
 
 	const sessionMock = {
@@ -138,6 +139,7 @@ function createHarness(): Harness {
 		setWorkingMessage: vi.fn(),
 		setToolsExpanded: vi.fn(),
 		toolOutputExpanded: false,
+		syncComposerShape: vi.fn(),
 		hideThinkingBlock: false,
 		showError: vi.fn(),
 		editor: {