chore: 清理 src 下 113 项未使用导入和死代码

删除未使用的文件（BuiltinStatusLine.tsx、4 个重复的 .ts stub）、
移除约 55 个文件中未使用的 React 导入、
清理约 50 处未使用的导入/变量/参数。
净减少 ~296 行代码，precheck 4077 测试全部通过。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/commands/assistant/assistant.tsx

@@ -1,5 +1,5 @@
 import * as React from 'react';
-import { useEffect, useState } from 'react';
+import { useState } from 'react';
 import { resolve } from 'path';
 import { Box, Text } from '@anthropic/ink';
 import { Dialog } from '../../components/design-system/Dialog.js';

src/commands/config/config.tsx

@@ -1,4 +1,3 @@
-import * as React from 'react';
 import { Settings } from '../../components/Settings/Settings.js';
 import type { LocalJSXCommandCall } from '../../types/command.js';
 

src/commands/diff/diff.tsx

@@ -1,4 +1,3 @@
-import * as React from 'react';
 import type { LocalJSXCommandCall } from '../../types/command.js';
 
 export const call: LocalJSXCommandCall = async (onDone, context) => {

src/commands/doctor/doctor.tsx

@@ -1,4 +1,3 @@
-import React from 'react';
 import { Doctor } from '../../screens/Doctor.js';
 import type { LocalJSXCommandCall } from '../../types/command.js';
 

src/commands/help/help.tsx

@@ -1,4 +1,3 @@
-import * as React from 'react';
 import { HelpV2 } from '../../components/HelpV2/HelpV2.js';
 import type { LocalJSXCommandCall } from '../../types/command.js';
 

src/commands/hooks/hooks.tsx

@@ -1,4 +1,3 @@
-import * as React from 'react';
 import { HooksConfigMenu } from '../../components/hooks/HooksConfigMenu.js';
 import { logEvent } from '../../services/analytics/index.js';
 import { getTools } from '../../tools.js';

src/commands/install-github-app/ApiKeyStep.tsx

@@ -1,4 +1,4 @@
-import React, { useCallback, useState } from 'react';
+import { useCallback, useState } from 'react';
 import TextInput from '../../components/TextInput.js';
 import { useTerminalSize } from '../../hooks/useTerminalSize.js';
 import { Box, color, Text, useTheme } from '@anthropic/ink';

src/commands/install-github-app/CheckExistingSecretStep.tsx

@@ -1,4 +1,4 @@
-import React, { useCallback, useState } from 'react';
+import { useCallback, useState } from 'react';
 import TextInput from '../../components/TextInput.js';
 import { useTerminalSize } from '../../hooks/useTerminalSize.js';
 import { Box, color, Text, useTheme } from '@anthropic/ink';

src/commands/install-github-app/CheckGitHubStep.tsx

@@ -1,4 +1,3 @@
-import React from 'react';
 import { Text } from '@anthropic/ink';
 
 export function CheckGitHubStep() {

src/commands/install-github-app/ChooseRepoStep.tsx

@@ -1,4 +1,4 @@
-import React, { useCallback, useState } from 'react';
+import { useCallback, useState } from 'react';
 import TextInput from '../../components/TextInput.js';
 import { useTerminalSize } from '../../hooks/useTerminalSize.js';
 import { Box, Text } from '@anthropic/ink';

src/commands/install-github-app/CreatingStep.tsx

@@ -1,4 +1,3 @@
-import React from 'react';
 import { Box, Text } from '@anthropic/ink';
 import type { Workflow } from './types.js';
 

src/commands/install-github-app/ErrorStep.tsx

@@ -1,4 +1,3 @@
-import React from 'react';
 import { GITHUB_ACTION_SETUP_DOCS_URL } from '../../constants/github-app.js';
 import { Box, Text } from '@anthropic/ink';
 

src/commands/install-github-app/ExistingWorkflowStep.tsx

@@ -1,4 +1,3 @@
-import React from 'react';
 import { Select } from 'src/components/CustomSelect/index.js';
 import { Box, Text } from '@anthropic/ink';
 

src/commands/install-github-app/InstallAppStep.tsx

@@ -1,5 +1,4 @@
 import figures from 'figures';
-import React from 'react';
 import { GITHUB_ACTION_SETUP_DOCS_URL } from '../../constants/github-app.js';
 import { Box, Text } from '@anthropic/ink';
 import { useKeybinding } from '../../keybindings/useKeybinding.js';

src/commands/install-github-app/WarningsStep.tsx

@@ -1,5 +1,4 @@
 import figures from 'figures';
-import React from 'react';
 import { GITHUB_ACTION_SETUP_DOCS_URL } from '../../constants/github-app.js';
 import { Box, Text } from '@anthropic/ink';
 import { useKeybinding } from '../../keybindings/useKeybinding.js';

src/commands/login/login.tsx

@@ -1,4 +1,3 @@
-import { feature } from 'bun:bundle';
 import * as React from 'react';
 import { resetCostState } from '../../bootstrap/state.js';
 import { clearTrustedDeviceToken, enrollTrustedDevice } from '../../bridge/trustedDevice.js';

src/commands/permissions/permissions.tsx

@@ -1,4 +1,3 @@
-import * as React from 'react';
 import { PermissionRuleList } from '../../components/permissions/rules/PermissionRuleList.js';
 import type { LocalJSXCommandCall } from '../../types/command.js';
 import { createPermissionRetryMessage } from '../../utils/messages.js';

src/commands/provider.ts

@@ -36,7 +36,7 @@ function getMergedEnv(): Record<string, string> {
   return merged
 }
 
-const call: LocalCommandCall = async (args, context) => {
+const call: LocalCommandCall = async (args, _context) => {
   const arg = args.trim().toLowerCase()
 
   // No argument: show current provider

src/commands/remoteControlServer/remoteControlServer.tsx

@@ -2,7 +2,7 @@ import { type ChildProcess } from 'child_process';
 import { resolve } from 'path';
 import * as React from 'react';
 import { useEffect, useState } from 'react';
-import { getBridgeDisabledReason, isBridgeEnabled } from '../../bridge/bridgeEnabled.js';
+import { getBridgeDisabledReason } from '../../bridge/bridgeEnabled.js';
 import { getBridgeAccessToken } from '../../bridge/bridgeConfig.js';
 import { BRIDGE_LOGIN_INSTRUCTION } from '../../bridge/types.js';
 import { Dialog } from '../../components/design-system/Dialog.js';

src/commands/review/ultrareviewCommand.tsx

@@ -1,5 +1,4 @@
 import type { ContentBlockParam } from '@anthropic-ai/sdk/resources/messages.js';
-import React from 'react';
 import type { LocalJSXCommandCall, LocalJSXCommandOnDone } from '../../types/command.js';
 import { checkOverageGate, confirmOverage, launchRemoteReview } from './reviewRemote.js';
 import { UltrareviewOverageDialog } from './UltrareviewOverageDialog.js';

src/commands/skill-learning/skill-learning.ts

@@ -9,7 +9,6 @@ import {
   exportInstincts,
   findPromotionCandidates,
   generateSkillCandidates,
-  importInstincts,
   ingestTranscript,
   listKnownProjects,
   loadInstincts,

src/commands/stats/stats.tsx

@@ -1,4 +1,3 @@
-import * as React from 'react';
 import { Stats } from '../../components/Stats.js';
 import type { LocalJSXCommandCall } from '../../types/command.js';
 

src/commands/ultraplan.tsx

@@ -1,4 +1,3 @@
-import { readFileSync } from 'fs';
 import { REMOTE_CONTROL_DISCONNECTED_MSG } from '../bridge/types.js';
 import type { Command } from '../commands.js';
 import { DIAMOND_OPEN } from '../constants/figures.js';
@@ -21,7 +20,6 @@ import { logForDebugging } from '../utils/debug.js';
 import { errorMessage } from '../utils/errors.js';
 import { logError } from '../utils/log.js';
 import { enqueuePendingNotification } from '../utils/messageQueueManager.js';
-import { ALL_MODEL_CONFIGS } from '../utils/model/configs.js';
 import { updateTaskState } from '../utils/task/framework.js';
 import { archiveRemoteSession, teleportToRemote } from '../utils/teleport.js';
 import { pollForApprovedExitPlanMode, UltraplanPollError } from '../utils/ultraplan/ccrSession.js';
@@ -36,13 +34,6 @@ import { registerCleanup } from '../utils/cleanupRegistry.js';
 // TODO(prod-hardening): OAuth token may go stale over the 30min poll;
 // consider refresh.
 
-/**
- * Multi-agent exploration is slow; 30min timeout.
- *
- * @deprecated use getUltraplanTimeoutMs()
- */
-const ULTRAPLAN_TIMEOUT_MS = 30 * 60 * 1000;
-
 export const CCR_TERMS_URL = 'https://code.claude.com/docs/en/claude-code-on-the-web';
 
 export function getUltraplanTimeoutMs(): number {
@@ -61,15 +52,6 @@ export function isUltraplanEnabled(): boolean {
   );
 }
 
-// CCR runs against the first-party API — use the canonical ID, not the
-// provider-specific string getModelStrings() would return (which may be a
-// Bedrock ARN or Vertex ID on the local CLI). Read at call time, not module
-// load: the GrowthBook cache is empty at import and `/config` Gates can flip
-// it between invocations.
-function getUltraplanModel(): string {
-  return getFeatureValue_CACHED_MAY_BE_STALE('tengu_ultraplan_model', ALL_MODEL_CONFIGS.opus47.firstParty);
-}
-
 // prompt.txt is wrapped in <system-reminder> so the CCR browser hides
 // scaffolding (CLI_BLOCK_TAGS dropped by stripSystemNotifications)
 // while the model still sees full text.
@@ -84,19 +66,6 @@ const _rawPrompt = require('../utils/ultraplan/prompt.txt');
 /* eslint-enable @typescript-eslint/no-require-imports */
 const DEFAULT_INSTRUCTIONS: string = (typeof _rawPrompt === 'string' ? _rawPrompt : _rawPrompt.default).trimEnd();
 
-// Dev-only prompt override resolved eagerly at module load.
-// Gated to ant builds (USER_TYPE is a build-time define,
-// so the override path is DCE'd from external builds).
-// Shell-set env only, so top-level process.env read is fine
-// — settings.env never injects this.
-// @deprecated use buildUltraplanPrompt()
-/* eslint-disable custom-rules/no-process-env-top-level, custom-rules/no-sync-fs -- ant-only dev override; eager top-level read is the point (crash at startup, not silently inside the slash-command try/catch) */
-const ULTRAPLAN_INSTRUCTIONS: string =
-  process.env.USER_TYPE === 'ant' && process.env.ULTRAPLAN_PROMPT_FILE
-    ? readFileSync(process.env.ULTRAPLAN_PROMPT_FILE, 'utf8').trimEnd()
-    : DEFAULT_INSTRUCTIONS;
-/* eslint-enable custom-rules/no-process-env-top-level, custom-rules/no-sync-fs */
-
 /**
  * Assemble the initial CCR user message. seedPlan and blurb stay outside the
  * system-reminder so the browser renders them; scaffolding is hidden.

src/commands/usage/usage.tsx

@@ -1,4 +1,3 @@
-import * as React from 'react';
 import { Settings } from '../../components/Settings/Settings.js';
 import type { LocalJSXCommandCall } from '../../types/command.js';