feat: add creative welcome and external works square links

tests/unit/coding-chat-panel.test.tsx

@@ -340,7 +340,7 @@ describe('CodingChatPanel first Conversation', () => {
     await waitFor(() => expect(codingConversationStore.getState().selectedConversationId).toBe(conversation.id));
     fireEvent.keyDown(menu, { key: 'Enter' });
     fireEvent.click(await screen.findByRole('menuitem', { name: '归档（任务继续运行）' }));
-    await screen.findByTestId('coding-conversation-pending');
+    await screen.findByRole('heading', { name: '今天，你想创造什么？' });
     expect(projectApi.create).not.toHaveBeenCalled();
     expect(conversationApi.abort).not.toHaveBeenCalled();
     fireEvent.click(screen.getByRole('button', { name: '查看归档对话' }));
@@ -434,13 +434,15 @@ describe('CodingChatPanel first Conversation', () => {
     expect(onOpenProjectSettings).not.toHaveBeenCalled();
   });
 
-  it('keeps an empty project editable without creating a conversation until first send', async () => {
+  it('keeps an empty project and its draft mounted across community visits until first send', async () => {
     projectApi.list.mockResolvedValue({ projects: [project], activeProjectId: project.id });
     projectApi.config.mockResolvedValue({ project, config });
     projectApi.conversations.mockResolvedValue([]);
     projectApi.create.mockResolvedValue(conversation);
     conversationApi.events.mockResolvedValue(new FakeEventSource() as unknown as EventSource);
     const { CodingChatPanel } = await import('@/pages/Chat/CodingChatPanel');
+    const api = await import('@/lib/api-client');
+    const external = vi.spyOn(api, 'invokeIpc').mockResolvedValue(undefined);
     const { createLocalConversationSnapshot } = await import('@/pages/Chat/coding-chat-snapshot');
     conversationApi.snapshot.mockResolvedValue(createLocalConversationSnapshot(project.id, conversation));
     render(<CodingChatPanel />);
@@ -448,8 +450,17 @@ describe('CodingChatPanel first Conversation', () => {
     expect(projectApi.create).not.toHaveBeenCalled();
     expect(conversationApi.snapshot).not.toHaveBeenCalled();
     fireEvent.change(textbox, {target:{value:'First prompt'}});
+    fireEvent.click(screen.getByRole('button', { name: '去作品广场逛逛' }));
+    await waitFor(() => expect(external).toHaveBeenCalledWith('shell:openExternal', 'https://square.nianxx.cn/#explore'));
+    expect(screen.queryByRole('dialog')).not.toBeInTheDocument();
+    expect(screen.getByRole('textbox')).toBe(textbox);
+    expect(textbox).toHaveValue('First prompt');
+    expect(projectApi.create).not.toHaveBeenCalled();
+    expect(conversationApi.submit).not.toHaveBeenCalled();
     fireEvent.click(screen.getByRole('button',{name:'发送'}));
     await waitFor(()=>expect(projectApi.create).toHaveBeenCalledOnce());
+    await waitFor(() => expect(screen.queryByTestId('community-invitation')).not.toBeInTheDocument());
+    expect(screen.getByRole('textbox')).toBe(textbox);
   });
 
   it('rehydrates a preselected stale Conversation when the programming view mounts', async () => {