Feat/integrate lint preview (#285)

* feat: 适配 zed acp 协议

* docs: 完善 acp 文档

* feat: integrate feature branches + daemon/job 命令层级化 + 跨平台后台引擎

Cherry-picked from origin/lint/preview (637c908), excluding lint-only changes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: correct detectMimeFromBase64 to decode raw bytes from base64

Cherry-picked from origin/lint/preview (ee36954).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: daemon 子进程 spawn 跨平台修复 + CliLaunchSpec 集中化重构

Cherry-picked from origin/lint/preview (c5f52cd), excluding lint-only formatting changes.

- 新建 src/utils/cliLaunch.ts: 集中化 CLI 子进程启动层
- 修复 --daemon-worker=kind 等号格式解析
- 修复 daemon/bg fast path 缺少 setShellIfWindows()
- 修复 checkPathExists 用 existsSync 替代 execSync('dir')
- 7 个 spawn 站点迁移到 CliLaunchSpec

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: merge tsconfig.base.json into tsconfig.json with full compiler options

The cherry-pick from 637c908 dropped jsx/strict/etc settings when removing
tsconfig.base.json. This commit restores them in a single tsconfig.json.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: merge tsconfig.base.json into tsconfig.json with full compiler options

The cherry-pick from 637c908 dropped jsx/strict/etc settings when removing
tsconfig.base.json. This commit restores them in a single tsconfig.json.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

src/cli/rollback.ts

@@ -1,2 +1,70 @@
-// Auto-generated stub
-export async function rollback(target?: string, options?: { list?: boolean; dryRun?: boolean; safe?: boolean }): Promise<void> {}
+/**
+ * `claude rollback [target]` — roll back to a previous Claude Code version.
+ *
+ * ANT-only command (USER_TYPE === "ant").
+ *
+ * Options:
+ *   --list      List recent published versions
+ *   --dry-run   Show what would be installed without installing
+ *   --safe      Roll back to the server-pinned safe version
+ */
+export async function rollback(
+  target?: string,
+  options?: { list?: boolean; dryRun?: boolean; safe?: boolean },
+): Promise<void> {
+  if (options?.list) {
+    console.log('Recent versions:')
+    console.log('  (version listing requires access to the release registry)')
+    console.log('  Use `claude update --list` for available versions.')
+    return
+  }
+
+  if (options?.safe) {
+    console.log('Safe rollback: would install the server-pinned safe version.')
+    if (options.dryRun) {
+      console.log('  (dry run — no changes made)')
+      return
+    }
+    console.log('  Safe version pinning requires access to the release API.')
+    console.log('  Contact oncall for the current safe version.')
+    return
+  }
+
+  if (!target) {
+    console.error(
+      'Usage: claude rollback [target]\n\n' +
+        'Options:\n' +
+        '  -l, --list     List recent published versions\n' +
+        '  --dry-run      Show what would be installed\n' +
+        '  --safe         Roll back to server-pinned safe version\n\n' +
+        'Examples:\n' +
+        '  claude rollback 2.1.880\n' +
+        '  claude rollback --list\n' +
+        '  claude rollback --safe',
+    )
+    process.exitCode = 1
+    return
+  }
+
+  console.log(`Rolling back to version ${target}...`)
+
+  if (options?.dryRun) {
+    console.log(`  (dry run — would install ${target})`)
+    return
+  }
+
+  // Version rollback via npm/bun
+  const { spawnSync } = await import('child_process')
+  const result = spawnSync(
+    'npm',
+    ['install', '-g', `@anthropic-ai/claude-code@${target}`],
+    { stdio: 'inherit' },
+  )
+
+  if (result.status !== 0) {
+    console.error(`Rollback failed with exit code ${result.status}`)
+    process.exitCode = result.status ?? 1
+  } else {
+    console.log(`Rolled back to ${target} successfully.`)
+  }
+}