refactor(app): 按文件运行输入记忆抽离为 useRunConfig composable

run-configs 的加载/保存/切档与防抖持久化（含两处 watch）移入独立 composable；
App 仅传入 currentFilePath 与三个输入 ref。零行为变化。

Author: qianmoQ

src/App.vue

@@ -539,6 +539,7 @@ import {useWorkspaceRoots} from './composables/useWorkspaceRoots'
 import {useGitStatus} from './composables/useGitStatus'
 import {useSessionTabs} from './composables/useSessionTabs'
 import {useEditorContextMenu} from './composables/useEditorContextMenu'
+import {useRunConfig} from './composables/useRunConfig'
 import EditorTabs from './components/EditorTabs.vue'
 import IndentControl from './components/IndentControl.vue'
 import Sidebar from './components/Sidebar.vue'
@@ -1779,44 +1780,8 @@ const handleSave = async () => {
 }
 
 // ===== 按文件记忆运行配置（args/stdin/env）=====
-const RUN_CONFIGS_KEY = 'run-configs'
-type RunConfig = { args: string, stdin: string, env: string }
-const loadRunConfigs = (): Record<string, RunConfig> =>
-    kvGetJSON<Record<string, RunConfig>>(RUN_CONFIGS_KEY, {})
-// 把当前输入写入指定文件的配置（全空则删除该条）
-const saveRunConfig = (path: string) => {
-  const map = loadRunConfigs()
-  if (!runArgs.value && !runStdin.value && !runEnv.value) {
-    delete map[path]
-  }
-  else {
-    map[path] = {args: runArgs.value, stdin: runStdin.value, env: runEnv.value}
-  }
-  kvSetJSON(RUN_CONFIGS_KEY, map)
-}
-// 载入指定文件的配置（无则清空）
-const loadRunConfig = (path: string | null) => {
-  const cfg = path ? loadRunConfigs()[path] : null
-  runArgs.value = cfg?.args || ''
-  runStdin.value = cfg?.stdin || ''
-  runEnv.value = cfg?.env || ''
-}
-
-// 切换文件时：保存旧文件输入、载入新文件输入
-watch(currentFilePath, (np, op) => {
-  if (op) {
-    saveRunConfig(op)
-  }
-  loadRunConfig(np)
-})
-
-// 编辑输入时防抖保存到当前文件
-const persistRunConfig = debounce(() => {
-  if (currentFilePath.value) {
-    saveRunConfig(currentFilePath.value)
-  }
-}, 400)
-watch([runArgs, runStdin, runEnv], () => persistRunConfig())
+// 按文件记忆运行输入（参数/stdin/环境变量）—— 抽离到 useRunConfig
+useRunConfig(currentFilePath, runArgs, runStdin, runEnv)
 
 // 解析环境变量文本（KEY=值，按换行或分号分隔）
 const parseEnv = (text: string): Record<string, string> => {

src/composables/useRunConfig.ts

@@ -0,0 +1,53 @@
+// 按文件记忆运行输入（参数/stdin/环境变量）：切换文件时保存旧、载入新，编辑时防抖保存。
+import {watch, type Ref} from 'vue'
+import {debounce} from 'lodash-es'
+import {kvGetJSON, kvSetJSON} from './useKvStore'
+
+const RUN_CONFIGS_KEY = 'run-configs'
+type RunConfig = { args: string, stdin: string, env: string }
+
+export function useRunConfig(
+  currentFilePath: Ref<string | null>,
+  runArgs: Ref<string>,
+  runStdin: Ref<string>,
+  runEnv: Ref<string>
+) {
+  const loadRunConfigs = (): Record<string, RunConfig> =>
+    kvGetJSON<Record<string, RunConfig>>(RUN_CONFIGS_KEY, {})
+
+  // 把当前输入写入指定文件的配置（全空则删除该条）
+  const saveRunConfig = (path: string) => {
+    const map = loadRunConfigs()
+    if (!runArgs.value && !runStdin.value && !runEnv.value) {
+      delete map[path]
+    }
+    else {
+      map[path] = {args: runArgs.value, stdin: runStdin.value, env: runEnv.value}
+    }
+    kvSetJSON(RUN_CONFIGS_KEY, map)
+  }
+
+  // 载入指定文件的配置（无则清空）
+  const loadRunConfig = (path: string | null) => {
+    const cfg = path ? loadRunConfigs()[path] : null
+    runArgs.value = cfg?.args || ''
+    runStdin.value = cfg?.stdin || ''
+    runEnv.value = cfg?.env || ''
+  }
+
+  // 切换文件时：保存旧文件输入、载入新文件输入
+  watch(currentFilePath, (np, op) => {
+    if (op) {
+      saveRunConfig(op)
+    }
+    loadRunConfig(np)
+  })
+
+  // 编辑输入时防抖保存到当前文件
+  const persistRunConfig = debounce(() => {
+    if (currentFilePath.value) {
+      saveRunConfig(currentFilePath.value)
+    }
+  }, 400)
+  watch([runArgs, runStdin, runEnv], () => persistRunConfig())
+}