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/__tests__/context.baseline.test.ts

@@ -0,0 +1,91 @@
+import { afterEach, beforeEach, describe, expect, test } from 'bun:test'
+import {
+  resetStateForTests,
+  setOriginalCwd,
+  setProjectRoot,
+} from '../bootstrap/state'
+import {
+  getSystemContext,
+  getUserContext,
+  setSystemPromptInjection,
+} from '../context'
+import { clearMemoryFileCaches } from '../utils/claudemd'
+import { cleanupTempDir, createTempDir, writeTempFile } from '../../tests/mocks/file-system'
+
+let tempDir = ''
+let projectClaudeMdContent = ''
+
+beforeEach(async () => {
+  tempDir = await createTempDir('context-baseline-')
+  projectClaudeMdContent = `baseline-${Date.now()}`
+
+  resetStateForTests()
+  setOriginalCwd(tempDir)
+  setProjectRoot(tempDir)
+  await writeTempFile(tempDir, 'CLAUDE.md', projectClaudeMdContent)
+
+  clearMemoryFileCaches()
+  getUserContext.cache.clear?.()
+  getSystemContext.cache.clear?.()
+  setSystemPromptInjection(null)
+  delete process.env.CLAUDE_CODE_DISABLE_CLAUDE_MDS
+})
+
+afterEach(async () => {
+  clearMemoryFileCaches()
+  getUserContext.cache.clear?.()
+  getSystemContext.cache.clear?.()
+  setSystemPromptInjection(null)
+  delete process.env.CLAUDE_CODE_DISABLE_CLAUDE_MDS
+  resetStateForTests()
+  if (tempDir) {
+    await cleanupTempDir(tempDir)
+  }
+})
+
+describe('context baseline', () => {
+  test('getUserContext includes currentDate and project CLAUDE.md content', async () => {
+    const ctx = await getUserContext()
+
+    expect(ctx.currentDate).toContain("Today's date is")
+    expect(ctx.claudeMd).toContain(projectClaudeMdContent)
+  })
+
+  test('CLAUDE_CODE_DISABLE_CLAUDE_MDS suppresses claudeMd loading', async () => {
+    process.env.CLAUDE_CODE_DISABLE_CLAUDE_MDS = '1'
+
+    const ctx = await getUserContext()
+
+    expect(ctx.currentDate).toContain("Today's date is")
+    expect(ctx.claudeMd).toBeUndefined()
+  })
+
+  test('setSystemPromptInjection clears the memoized user-context cache', async () => {
+    const first = await getUserContext()
+    process.env.CLAUDE_CODE_DISABLE_CLAUDE_MDS = '1'
+
+    const second = await getUserContext()
+    expect(first.claudeMd).toContain(projectClaudeMdContent)
+    expect(second.claudeMd).toContain(projectClaudeMdContent)
+
+    setSystemPromptInjection('cache-break')
+
+    const third = await getUserContext()
+    expect(third.claudeMd).toBeUndefined()
+  })
+
+  test('getSystemContext reflects system prompt injection after cache invalidation', async () => {
+    const first = await getSystemContext()
+    expect(first.gitStatus).toBeUndefined()
+    expect(first.cacheBreaker).toBeUndefined()
+
+    setSystemPromptInjection('baseline-cache-break')
+
+    const second = await getSystemContext()
+    if ('cacheBreaker' in second) {
+      expect(second.cacheBreaker).toContain('baseline-cache-break')
+    } else {
+      expect(second.gitStatus).toBeUndefined()
+    }
+  })
+})