perf: 热路径与首屏优化（lsof 超时收敛、bots-info 指纹缓存、Dashboard 首屏 −20%）

src/core/session-discovery.ts

@@ -15,6 +15,7 @@ import { findCocoSessionByPid } from '../services/coco-transcript.js';
 import { findTraexRolloutByPid } from '../services/traex-transcript.js';
 import { tmuxEnv } from '../setup/ensure-tmux.js';
 import { herdrExecutable } from '../utils/herdr-executable.js';
+import { LSOF_EXEC_OPTIONS } from '../utils/process-open-files.js';
 
 // macOS 没有 /proc，所以走 ps/lsof/pgrep 兜底。Linux 仍优先走 /proc 快路径。
 const IS_LINUX = platform() === 'linux';
@@ -359,10 +360,7 @@ export function readCwd(pid: number): string | undefined {
     }
   }
   try {
-    const out = execSync(`lsof -a -d cwd -p ${pid} -Fn`, {
-      encoding: 'utf-8',
-      stdio: ['pipe', 'pipe', 'pipe'],
-    });
+    const out = execFileSync('lsof', ['-n', '-P', '-a', '-d', 'cwd', '-p', String(pid), '-Fn'], LSOF_EXEC_OPTIONS);
     for (const line of out.split('\n')) {
       if (line.startsWith('n')) return line.slice(1);
     }

src/core/worker-pool.ts

@@ -675,6 +675,7 @@ import { isStructuredBridgeAdoptCli } from '../services/structured-bridge-clis.j
 import { resolveEffectivePluginIds } from './plugins/effective.js';
 import { ensureGatewayEntry } from './plugins/mcp/gateway-installer.js';
 import { readPeerCrossRef } from '../services/peer-cross-ref-store.js';
+import { readBotsInfoJson } from '../services/bots-info-cache.js';
 import {
   claimQuotaFallbackEvent,
   resolveQuotaFallbackTarget,
@@ -2734,12 +2735,10 @@ function loadKnownBotOpenIdsForApp(larkAppId: string): Set<string> {
   const dataDir = config.session.dataDir;
   const crossRef = readPeerCrossRef(dataDir, larkAppId);
 
-  let botEntries: BotMentionEntry[] = [];
-  const botInfoPath = join(dataDir, 'bots-info.json');
-  if (existsSync(botInfoPath)) {
-    const parsed = JSON.parse(readFileSync(botInfoPath, 'utf-8'));
-    if (Array.isArray(parsed)) botEntries = parsed as BotMentionEntry[];
-  }
+  // Runs on every turn's final output; the cached read only re-parses when
+  // a sibling daemon actually rewrote bots-info.json.
+  const parsed = readBotsInfoJson(dataDir);
+  const botEntries: BotMentionEntry[] = Array.isArray(parsed) ? parsed as BotMentionEntry[] : [];
 
   return knownBotOpenIdsFromCrossRef(crossRef, botEntries, larkAppId);
 }

src/dashboard/web/bot-defaults-page.tsx

@@ -43,6 +43,7 @@ import {
 import { isRemoteCliId } from '../../core/remote-cli-ids.js';
 import { mountReactPage, type PageDisposer } from './react-mount.js';
 import { useT } from './react-hooks.js';
+import { DropdownField, ModelPickerField, type DropdownFieldOption } from './field-controls.js';
 import {
   MentionMock,
   ModeOptionGroup,
@@ -489,154 +490,6 @@ function FieldTitle(props: { children: ReactNode; help?: ReactNode }) {
   );
 }
 
-type DropdownFieldOption<T extends string> = {
-  value: T;
-  label: ReactNode;
-  hint?: ReactNode;
-  disabled?: boolean;
-};
-
-export function DropdownField<T extends string>(props: {
-  dataInput: string;
-  value: T;
-  options: DropdownFieldOption<T>[];
-  disabled?: boolean;
-  ariaLabel?: string;
-  className?: string;
-  searchable?: boolean;
-  onChange(value: T): void;
-}) {
-  const tr = useT();
-  return (
-    <>
-      <DropdownMenu
-        id={`bd-menu-${props.dataInput}`}
-        className={['bd-field-menu', props.className].filter(Boolean).join(' ')}
-        ariaLabel={props.ariaLabel}
-        disabled={props.disabled}
-        label={dropdownLabel(props.options, props.value)}
-        value={props.value}
-        options={props.options}
-        searchable={props.searchable}
-        searchPlaceholder={props.searchable ? tr('common.dropdownSearch') : undefined}
-        searchEmptyLabel={props.searchable ? tr('common.dropdownSearchEmpty') : undefined}
-        onChange={props.onChange}
-      />
-      <input type="hidden" data-input={props.dataInput} value={props.value} readOnly />
-    </>
-  );
-}
-
-const MODEL_PICKER_CUSTOM = '__custom__';
-
-/**
- * 模型选择器：下拉候选（静态精选 + live 探测合并，由调用方 mergeModelCandidates 算好）
- * + 「自定义模型…」自由输入。模型列表会过期，候选永不锁死。
- * - value='' 表示跟随 CLI 默认，菜单显示 defaultLabel；
- * - value 非空但不在候选中时，把当前值作为额外选项插在最前（旧配置/自定义值可见）；
- * - 选中 customLabel 切到自定义输入模式（datalist 仍挂全部候选做自动补全），
- *   返回按钮切回下拉模式；
- * - busy（live 探测进行中）只在控件下方显示小转圈，不禁用选择。
- */
-export function ModelPickerField(props: {
-  value: string;
-  onChange(next: string): void;
-  options: readonly string[];
-  disabled?: boolean;
-  busy?: boolean;
-  dataInput: string;
-  ariaLabel: string;
-  defaultLabel: string;
-  customLabel: string;
-  includeDefault?: boolean;
-  detectedCount?: number;
-  detectedLabel?: string;
-  /** 下拉菜单样式类：defaults 页传 bd-field-menu，onboarding 传 onboarding-menu。 */
-  menuClassName?: string;
-}): React.JSX.Element {
-  const tr = useT();
-  const [customMode, setCustomMode] = useState(false);
-  const datalistId = useId();
-  const current = props.value;
-  const dropdownOptions = useMemo(() => {
-    const opts: { value: string; label: ReactNode }[] = [];
-    if (props.includeDefault) opts.push({ value: '', label: props.defaultLabel });
-    if (current && !props.options.includes(current)) {
-      opts.push({ value: current, label: current });
-    }
-    for (const item of props.options) opts.push({ value: item, label: item });
-    opts.push({ value: MODEL_PICKER_CUSTOM, label: props.customLabel });
-    return opts;
-  }, [current, props.options, props.customLabel, props.includeDefault, props.defaultLabel]);
-
-  return (
-    <span className="bd-model-picker">
-      {customMode ? (
-        <span className="bd-model-custom">
-          <input
-            type="text"
-            data-input={props.dataInput}
-            list={datalistId}
-            value={current}
-            placeholder={props.defaultLabel}
-            disabled={props.disabled}
-            autoComplete="off"
-            autoCapitalize="none"
-            spellCheck={false}
-            onChange={event => props.onChange(event.currentTarget.value)}
-          />
-          <button
-            type="button"
-            className="bd-model-back"
-            disabled={props.disabled}
-            onClick={() => setCustomMode(false)}
-          >
-            {tr('botDefaults.modelPickerBack')}
-          </button>
-          <datalist id={datalistId}>
-            {props.options.map(item => <option value={item} key={item} />)}
-          </datalist>
-        </span>
-      ) : (
-        <>
-          <DropdownMenu<string>
-            id={`bd-menu-${props.dataInput}`}
-            className={['bd-model-menu', props.menuClassName].filter(Boolean).join(' ')}
-            ariaLabel={props.ariaLabel}
-            disabled={props.disabled}
-            label={current || props.defaultLabel}
-            value={current}
-            options={dropdownOptions}
-            searchable
-            searchPlaceholder={tr('common.dropdownSearch')}
-            searchEmptyLabel={tr('common.dropdownSearchEmpty')}
-            onChange={next => {
-              if (next === MODEL_PICKER_CUSTOM) {
-                setCustomMode(true);
-                return;
-              }
-              props.onChange(next);
-            }}
-          />
-          {/* 与 DropdownField 同款 data-input 锚点：既有测试/自动化经它读写当前值 */}
-          <input
-            type="hidden"
-            data-input={props.dataInput}
-            value={current}
-            onChange={event => props.onChange(event.currentTarget.value)}
-          />
-        </>
-      )}
-      {props.busy
-        ? <small className="bd-model-busy"><span className="bd-model-spinner" aria-hidden="true" /></small>
-        : null}
-      {typeof props.detectedCount === 'number' && props.detectedCount > 0 && props.detectedLabel
-        ? <small className="bd-model-detected">{props.detectedLabel}</small>
-        : null}
-    </span>
-  );
-}
-
 function ToggleRow(props: {
   checked: boolean;
   disabled?: boolean;

src/dashboard/web/bot-onboarding.tsx

@@ -2,7 +2,7 @@ import type React from 'react';
 import { useCallback, useEffect, useMemo, useRef, useState, type FormEvent } from 'react';
 import { DropdownMenu } from './dashboard-components.js';
 import { fetchDetectedModels, mergeModelCandidates, modelSuggestionsForOption } from './bot-defaults.js';
-import { ModelPickerField } from './bot-defaults-page.js';
+import { ModelPickerField } from './field-controls.js';
 import { confirm } from './confirm-modal.js';
 import { t } from './ui.js';
 

src/dashboard/web/field-controls.tsx

@@ -0,0 +1,155 @@
+import { useId, useMemo, useState, type ReactNode } from 'react';
+import { DropdownMenu, dropdownLabel } from './dashboard-components.js';
+import { useT } from './react-hooks.js';
+
+// Form controls shared by the bot defaults page, bot onboarding and group
+// default models. Kept out of bot-defaults-page.tsx so the statically loaded
+// onboarding flow does not pull that whole (lazy-loaded) page into app.js.
+
+export type DropdownFieldOption<T extends string> = {
+  value: T;
+  label: ReactNode;
+  hint?: ReactNode;
+  disabled?: boolean;
+};
+
+export function DropdownField<T extends string>(props: {
+  dataInput: string;
+  value: T;
+  options: DropdownFieldOption<T>[];
+  disabled?: boolean;
+  ariaLabel?: string;
+  className?: string;
+  searchable?: boolean;
+  onChange(value: T): void;
+}) {
+  const tr = useT();
+  return (
+    <>
+      <DropdownMenu
+        id={`bd-menu-${props.dataInput}`}
+        className={['bd-field-menu', props.className].filter(Boolean).join(' ')}
+        ariaLabel={props.ariaLabel}
+        disabled={props.disabled}
+        label={dropdownLabel(props.options, props.value)}
+        value={props.value}
+        options={props.options}
+        searchable={props.searchable}
+        searchPlaceholder={props.searchable ? tr('common.dropdownSearch') : undefined}
+        searchEmptyLabel={props.searchable ? tr('common.dropdownSearchEmpty') : undefined}
+        onChange={props.onChange}
+      />
+      <input type="hidden" data-input={props.dataInput} value={props.value} readOnly />
+    </>
+  );
+}
+
+const MODEL_PICKER_CUSTOM = '__custom__';
+
+/**
+ * 模型选择器：下拉候选（静态精选 + live 探测合并，由调用方 mergeModelCandidates 算好）
+ * + 「自定义模型…」自由输入。模型列表会过期，候选永不锁死。
+ * - value='' 表示跟随 CLI 默认，菜单显示 defaultLabel；
+ * - value 非空但不在候选中时，把当前值作为额外选项插在最前（旧配置/自定义值可见）；
+ * - 选中 customLabel 切到自定义输入模式（datalist 仍挂全部候选做自动补全），
+ *   返回按钮切回下拉模式；
+ * - busy（live 探测进行中）只在控件下方显示小转圈，不禁用选择。
+ */
+export function ModelPickerField(props: {
+  value: string;
+  onChange(next: string): void;
+  options: readonly string[];
+  disabled?: boolean;
+  busy?: boolean;
+  dataInput: string;
+  ariaLabel: string;
+  defaultLabel: string;
+  customLabel: string;
+  includeDefault?: boolean;
+  detectedCount?: number;
+  detectedLabel?: string;
+  /** 下拉菜单样式类：defaults 页传 bd-field-menu，onboarding 传 onboarding-menu。 */
+  menuClassName?: string;
+}): React.JSX.Element {
+  const tr = useT();
+  const [customMode, setCustomMode] = useState(false);
+  const datalistId = useId();
+  const current = props.value;
+  const dropdownOptions = useMemo(() => {
+    const opts: { value: string; label: ReactNode }[] = [];
+    if (props.includeDefault) opts.push({ value: '', label: props.defaultLabel });
+    if (current && !props.options.includes(current)) {
+      opts.push({ value: current, label: current });
+    }
+    for (const item of props.options) opts.push({ value: item, label: item });
+    opts.push({ value: MODEL_PICKER_CUSTOM, label: props.customLabel });
+    return opts;
+  }, [current, props.options, props.customLabel, props.includeDefault, props.defaultLabel]);
+
+  return (
+    <span className="bd-model-picker">
+      {customMode ? (
+        <span className="bd-model-custom">
+          <input
+            type="text"
+            data-input={props.dataInput}
+            list={datalistId}
+            value={current}
+            placeholder={props.defaultLabel}
+            disabled={props.disabled}
+            autoComplete="off"
+            autoCapitalize="none"
+            spellCheck={false}
+            onChange={event => props.onChange(event.currentTarget.value)}
+          />
+          <button
+            type="button"
+            className="bd-model-back"
+            disabled={props.disabled}
+            onClick={() => setCustomMode(false)}
+          >
+            {tr('botDefaults.modelPickerBack')}
+          </button>
+          <datalist id={datalistId}>
+            {props.options.map(item => <option value={item} key={item} />)}
+          </datalist>
+        </span>
+      ) : (
+        <>
+          <DropdownMenu<string>
+            id={`bd-menu-${props.dataInput}`}
+            className={['bd-model-menu', props.menuClassName].filter(Boolean).join(' ')}
+            ariaLabel={props.ariaLabel}
+            disabled={props.disabled}
+            label={current || props.defaultLabel}
+            value={current}
+            options={dropdownOptions}
+            searchable
+            searchPlaceholder={tr('common.dropdownSearch')}
+            searchEmptyLabel={tr('common.dropdownSearchEmpty')}
+            onChange={next => {
+              if (next === MODEL_PICKER_CUSTOM) {
+                setCustomMode(true);
+                return;
+              }
+              props.onChange(next);
+            }}
+          />
+          {/* 与 DropdownField 同款 data-input 锚点：既有测试/自动化经它读写当前值 */}
+          <input
+            type="hidden"
+            data-input={props.dataInput}
+            value={current}
+            onChange={event => props.onChange(event.currentTarget.value)}
+          />
+        </>
+      )}
+      {props.busy
+        ? <small className="bd-model-busy"><span className="bd-model-spinner" aria-hidden="true" /></small>
+        : null}
+      {typeof props.detectedCount === 'number' && props.detectedCount > 0 && props.detectedLabel
+        ? <small className="bd-model-detected">{props.detectedLabel}</small>
+        : null}
+    </span>
+  );
+}

src/dashboard/web/group-default-models.tsx

@@ -2,7 +2,7 @@ import React, { useEffect, useRef, useState } from 'react';
 import { groupModelSettings, type GroupDefaultModels, type GroupModelSettings } from '../../core/group-default-models.js';
 import { reasoningEffortsForCliModel } from '../../services/codex-reasoning-effort.js';
 import { useT } from './react-hooks.js';
-import { DropdownField, ModelPickerField } from './bot-defaults-page.js';
+import { DropdownField, ModelPickerField } from './field-controls.js';
 import { fetchCliOptions, fetchDetectedModels, mergeModelCandidates, modelSuggestionsForOption, selectedCliOption } from './bot-defaults.js';
 
 type Props = {