fix(strategy): dirty误标根治:Monaco setValue回写modelValue(含换行规整)与nextTick复位竞态;改载入宽限窗口300ms(echoGrace),窗口内code变更不算用户编辑 [nas]

frontend/src/views/strategy/Code.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, computed, onMounted, watch, nextTick } from 'vue'
+import { ref, computed, onMounted, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { ElMessage } from 'element-plus'
 import MonacoEditor from '@/components/MonacoEditor.vue'
@@ -52,6 +52,9 @@ onMounted(async () => {
 })
 
 const loadingCode = ref(false)
+// 载入宽限:载入后 Monaco setValue→onDidChangeModelContent→回写 modelValue 的链路
+// 会再次改变 code(可能规整换行),不能当用户编辑;300ms 后才视为真人输入
+let echoGrace = false
 
 async function select(f: StrategyFile): Promise<void> {
   activeName.value = f.name
@@ -60,14 +63,11 @@ async function select(f: StrategyFile): Promise<void> {
   loadingCode.value = true
   try {
     const { data } = await apiClient.get<{ code: string }>(`/strategy/file/${f.name}`)
+    echoGrace = true
     code.value = data.code
-    // 程序化赋值会触发 watch(code) 误标 dirty → 渲染后复位
-    await nextTick()
-    dirty.value = false
+    window.setTimeout(() => { echoGrace = false }, 300)
   } catch {
     code.value = ''
-    await nextTick()
-    dirty.value = false
     ElMessage.error(`读取 ${f.name} 失败`)
   } finally {
     loadingCode.value = false
@@ -75,6 +75,7 @@ async function select(f: StrategyFile): Promise<void> {
 }
 
 watch(code, () => {
+  if (echoGrace) return
   dirty.value = true
   syntaxOk.value = null
 })