重构: confirmDialog抽composable+tool_result反向查找+search列限定

- FR-D5 抽 useConfirm 收敛 4 视图(Projects/ProjectDetail/Ideas/Settings)确认弹层重复
- FR-D4 replace_tool_result_content 正向 O(n) 改反向 rposition(审批替换命中最近,调用低频)
- FR-D2 search_vector SELECT * 改显式 14 列(消除隐式依赖,字段级精简待单独立项)

src/views/ProjectDetail.vue

@@ -213,6 +213,7 @@ import { formatDate } from '../utils/time'
 import { parseStack } from '../utils/project'
 import { projectStatusLabel, projectStageInfo, taskStatusLabel, taskStatusClass } from '../constants/project'
 import ConfirmDialog from '../components/ConfirmDialog.vue'
+import { useConfirm } from '../composables/useConfirm'
 
 const route = useRoute()
 const router = useRouter()
@@ -222,20 +223,8 @@ const logListRef = ref<HTMLElement | null>(null)
 const showApprovalDialog = ref(false)
 let unlisten: (() => void) | null = null
 
-// ── 确认弹层（替代原生 window.confirm，后者在 Tauri webview 带 localhost 来源信息无法去除） ──
-const confirmState = ref({ visible: false, msg: '', resolve: null as null | ((v: boolean) => void) })
-function confirmDialog(msg: string): Promise<boolean> {
-  return new Promise(resolve => {
-    confirmState.value.msg = msg
-    confirmState.value.visible = true
-    confirmState.value.resolve = resolve
-  })
-}
-function answerConfirm(ok: boolean) {
-  confirmState.value.visible = false
-  confirmState.value.resolve?.(ok)
-  confirmState.value.resolve = null
-}
+// 确认弹层状态机抽至 composables/useConfirm(原 4 视图重复:Projects/ProjectDetail/Ideas/Settings)
+const { confirmState, confirmDialog, answerConfirm } = useConfirm()
 
 // ── 阶段定义(labelKey 对应 i18n projectDetail.stage*) ──
 const stages = [