✨ feat(vscode): 问 AI 输入框能粘贴、拖进图片随问题发给 Claude Code，缩略图能点开看大图，图片存进 .spx/code-qa 跟着问答删

vscode/src/cc/spawnClaude.test.ts

@@ -29,6 +29,16 @@ describe('跑 claude、逐行交出 stdout', () => {
     expect(lines).toEqual(['{"a":1}', '{"b":2}', await fsp.realpath(dir), '-p|带 空格 的问题|'])
   })
 
+  it('给了 input 就写进 stdin 再关上（stream-json 的消息）；不给时 stdin 是空的，读 stdin 的也不会卡住', async () => {
+    const bin = await fakeBin('cat; echo end')
+    const withInput: string[] = []
+    await runClaudeLines({ bin, args: [], cwd: dir, input: '{"type":"user"}\n', onLine: item => withInput.push(item) })
+    expect(withInput).toEqual(['{"type":"user"}', 'end'])
+    const without: string[] = []
+    await runClaudeLines({ bin, args: [], cwd: dir, timeoutMs: 2000, onLine: item => without.push(item) })
+    expect(without).toEqual(['end'])
+  })
+
   it('退出码非零：带上 stderr 的原话', async () => {
     const bin = await fakeBin('echo "No conversation found with session ID: x" >&2; exit 1')
     const error = await runClaudeLines({ bin, args: [], cwd: dir, onLine: () => {} }).catch((err: unknown) => err)