fix: restore compact desktop chat empty state

.trellis/tasks/06-25-desktop-agent-workbench/implement.md

@@ -31,3 +31,14 @@
 - `pnpm --dir desktop run build` passed after bundling built-in skills.
 - `cargo check -p open-agent-sdk --manifest-path desktop/src-tauri/Cargo.toml` passed after bundling built-in skills.
 - `pnpm --dir desktop exec tsc --noEmit` passed after merging Agent Workbench into Chat.
+
+## AQBot 2026-06 Reference Notes
+
+Pulled `AQBot-Desktop/AQBot` at `9c21a2d` for comparison. Useful upstream ideas to consider next:
+
+- Keep the chat empty state minimal: title-only "开始新的对话", with Agent/skills/model controls living in the bottom composer.
+- Role module: local role templates, opening messages/questions, role marketplace, and role conversations with badges/avatar.
+- Multi-source skill roots: AQBot/Codex/Claude/Agents directories with source filtering, groups, batch enable/disable, and install targets.
+- Built-in tools: fetch and file search available without a separate MCP server.
+- Conversation workflow polish: message versions, branches, long-context compression, multi-model parallel responses, minimap, and stats panel.
+- Import workflow: ChatGPT/Cherry Studio/Kelivo imports with provider key and attachment migration.

desktop/src/components/chat/ChatView.tsx

@@ -4142,14 +4142,11 @@ export function ChatView() {
           ) : (
             <div
               className="flex flex-col items-center justify-center h-full"
-              style={{ gap: 8, padding: '0 24px', color: token.colorTextSecondary }}
+              style={{ padding: '0 24px', color: token.colorTextSecondary }}
             >
-              <Typography.Title level={3} style={{ margin: 0, color: token.colorText }}>
+              <Typography.Title level={3} style={{ margin: 0, color: token.colorText, fontWeight: 500 }}>
                 {t('chat.welcome')}
               </Typography.Title>
-              <Typography.Text type="secondary">
-                {t('chat.emptyPrompt', '输入消息开始对话，或在下方切换 Agent / 创作模式。')}
-              </Typography.Text>
             </div>
           )
         ) : (