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/commands/lang/index.ts

@@ -0,0 +1,12 @@
+import type { Command } from '../../commands.js'
+
+const lang = {
+  type: 'local-jsx',
+  name: 'lang',
+  description: 'Set display language (en/zh/auto)',
+  immediate: true,
+  argumentHint: '<en|zh|auto>',
+  load: () => import('./lang.js'),
+} satisfies Command
+
+export default lang

src/commands/lang/lang.ts

@@ -0,0 +1,49 @@
+import type { ToolUseContext } from '../../Tool.js'
+import type {
+  LocalJSXCommandContext,
+  LocalJSXCommandOnDone,
+} from '../../types/command.js'
+import { getGlobalConfig, saveGlobalConfig } from '../../utils/config.js'
+import {
+  type PreferredLanguage,
+  getLanguageDisplayName,
+  getResolvedLanguage,
+} from '../../utils/language.js'
+
+const VALID_LANGS: readonly PreferredLanguage[] = ['en', 'zh', 'auto']
+
+export async function call(
+  onDone: LocalJSXCommandOnDone,
+  _context: ToolUseContext & LocalJSXCommandContext,
+  args: string,
+): Promise<null> {
+  const arg = args.trim().toLowerCase()
+
+  if (!arg) {
+    const pref = getGlobalConfig().preferredLanguage ?? 'auto'
+    const resolved = getResolvedLanguage()
+    const suffix =
+      pref === 'auto' ? ` → ${getLanguageDisplayName(resolved)}` : ''
+    onDone(`Language: ${getLanguageDisplayName(pref)}${suffix}`, {
+      display: 'system',
+    })
+    return null
+  }
+
+  if (!VALID_LANGS.includes(arg as PreferredLanguage)) {
+    onDone(`Invalid language "${arg}". Use: en, zh, or auto`, {
+      display: 'system',
+    })
+    return null
+  }
+
+  const lang = arg as PreferredLanguage
+  saveGlobalConfig(current => ({ ...current, preferredLanguage: lang }))
+
+  const resolved = getResolvedLanguage()
+  const suffix = lang === 'auto' ? ` → ${getLanguageDisplayName(resolved)}` : ''
+  onDone(`Language set to ${getLanguageDisplayName(lang)}${suffix}`, {
+    display: 'system',
+  })
+  return null
+}