✨ feat(vscode): 提交代码按钮实时显示进度并预检 git 身份

- spawnClaude 新增 onProgress 回调，给了回调就改走 stream-json 逐行输出，按行解析出工具调用 / 回复文本
- 新增 claudeProgress 把每行 NDJSON 压成可读进度短语
- 提交前先读 git user.name / user.email，缺失直接提示，不再让 claude 白跑
- 运行期间用带转圈的 toast 滚动显示进度，完成后带上 claude 的结果摘要

Claude-Session: https://claude.ai/code/session_01HTMgwaE3woqM5yvsHiuSAa

vscode/src/git/identity.test.ts

@@ -0,0 +1,24 @@
+import { describe, expect, it } from 'vitest'
+import { missingGitIdentityKeys } from './identity'
+
+describe('missingGitIdentityKeys', () => {
+  it('两项都有时返回空', () => {
+    expect(missingGitIdentityKeys({ name: 'cruldra', email: 'a@b.c' })).toEqual([])
+  })
+
+  it('缺 name', () => {
+    expect(missingGitIdentityKeys({ name: '', email: 'a@b.c' })).toEqual(['user.name'])
+  })
+
+  it('缺 email', () => {
+    expect(missingGitIdentityKeys({ name: 'cruldra', email: '' })).toEqual(['user.email'])
+  })
+
+  it('两项都缺，顺序固定', () => {
+    expect(missingGitIdentityKeys({ name: '', email: '' })).toEqual(['user.name', 'user.email'])
+  })
+
+  it('只有空白也算缺失', () => {
+    expect(missingGitIdentityKeys({ name: '  \n', email: '\t' })).toEqual(['user.name', 'user.email'])
+  })
+})

vscode/src/git/identity.ts

@@ -0,0 +1,46 @@
+/**
+ * 读取当前仓库生效的 git 提交者身份（user.name / user.email）。
+ *
+ * 提交代码前先查一遍：身份缺失时 git commit 会直接失败，与其让后台 claude
+ * 跑十几分钟后才报错，不如一开始就把话说清楚。
+ */
+
+import { execFile } from 'node:child_process'
+
+export interface GitIdentity {
+  name: string
+  email: string
+}
+
+export type GitIdentityKey = 'user.name' | 'user.email'
+
+export function missingGitIdentityKeys(identity: GitIdentity): GitIdentityKey[] {
+  const missing: GitIdentityKey[] = []
+  if (!identity.name.trim())
+    missing.push('user.name')
+  if (!identity.email.trim())
+    missing.push('user.email')
+  return missing
+}
+
+function readGitConfig(cwd: string, key: GitIdentityKey): Promise<string> {
+  return new Promise<string>((resolve) => {
+    execFile(
+      'git',
+      ['-C', cwd, 'config', '--get', key],
+      { timeout: 10_000, encoding: 'utf8' },
+      (err, stdout) => {
+        // 未设置该项时 git 以退出码 1 结束且无输出，视同空串即可
+        resolve(err ? '' : (stdout ?? '').trim())
+      },
+    )
+  })
+}
+
+export async function readGitIdentity(cwd: string): Promise<GitIdentity> {
+  const [name, email] = await Promise.all([
+    readGitConfig(cwd, 'user.name'),
+    readGitConfig(cwd, 'user.email'),
+  ])
+  return { name, email }
+}