fix: surface discover history delete failures and watch server dist in dev.

Show a clear error when the API still uses the legacy cancel-only DELETE handler, and run tsc --watch alongside the dev supervisor so server changes apply without a manual rebuild.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: Travisun

apps/server/package.json

@@ -4,7 +4,7 @@
   "private": true,
   "type": "module",
   "scripts": {
-    "dev": "npm run build && node scripts/dev.mjs",
+    "dev": "npm run build && concurrently -k -n tsc,api \"tsc -p tsconfig.json --watch --preserveWatchOutput\" \"node scripts/dev.mjs\"",
     "build": "tsc -p tsconfig.json",
     "start": "node dist/index.js",
     "mcp": "npm run build -w @inno-a-stock/agent && node ../../packages/agent/dist/mcp/stdio-entry.js"

client-ui/src/market/DiscoverTab.tsx

@@ -377,6 +377,8 @@ export default function DiscoverTab({ session, watchlistCodes, onSelect, onAdd }
     cancelRun,
     loadHistoryJob,
     deleteHistoryJob,
+    deleteError,
+    clearDeleteError,
   } = session
 
   const strategyOptions = useMemo((): DiscoverStrategyOption[] => {
@@ -433,6 +435,7 @@ export default function DiscoverTab({ session, watchlistCodes, onSelect, onAdd }
   const handleDeleteHistory = (e: MouseEvent, jobId: string) => {
     e.preventDefault()
     e.stopPropagation()
+    clearDeleteError()
     void deleteHistoryJob(jobId)
   }
 
@@ -591,6 +594,9 @@ export default function DiscoverTab({ session, watchlistCodes, onSelect, onAdd }
 
       {panelTab === 'history' && (
         <div className={mergeClasses(s.historyList, 'inno-scroll')}>
+          {deleteError && (
+            <Text className={s.error} block>{deleteError}</Text>
+          )}
           {historyJobs.length === 0 && (
             <Text className={s.empty}>
               暂无历史记录。完成一次挖掘后，结果会保存在这里，可随时回看或删除。

client-ui/src/market/useDiscoverSession.ts

@@ -24,7 +24,9 @@ export interface DiscoverSessionState {
   runCustomStrategy: (opts: { id: string; name: string; prompt: string }) => Promise<void>
   cancelRun: () => Promise<void>
   loadHistoryJob: (job: DiscoverJobSnapshot) => void
-  deleteHistoryJob: (jobId: string) => Promise<void>
+  deleteHistoryJob: (jobId: string) => Promise<boolean>
+  deleteError: string
+  clearDeleteError: () => void
 }
 
 export function useDiscoverSession(): DiscoverSessionState {
@@ -35,6 +37,7 @@ export function useDiscoverSession(): DiscoverSessionState {
   const [running, setRunning] = useState(false)
   const [error, setError] = useState('')
   const [selectedStrategyId, setSelectedStrategyId] = useState<string | null>(null)
+  const [deleteError, setDeleteError] = useState('')
   const pollRef = useRef<number | null>(null)
   const viewingJobIdRef = useRef<string | null>(null)
   const historyRef = useRef<DiscoverJobSnapshot[]>([])
@@ -206,6 +209,7 @@ export function useDiscoverSession(): DiscoverSessionState {
   }, [])
 
   const deleteHistoryJob = useCallback(async (jobId: string) => {
+    setDeleteError('')
     const viewingDeleted = viewingJobIdRef.current === jobId || activeJobId === jobId
     const prevHistory = historyRef.current
 
@@ -220,7 +224,13 @@ export function useDiscoverSession(): DiscoverSessionState {
 
     try {
       await deleteDiscoverJob(jobId)
-    } catch {
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : ''
+      setDeleteError(
+        msg.includes('not running')
+          ? '删除失败：请重启应用或 API 服务后再试'
+          : '删除失败，请稍后重试',
+      )
       setHistory(prevHistory)
       if (viewingDeleted) {
         const jobs = await refreshHistory()
@@ -233,12 +243,15 @@ export function useDiscoverSession(): DiscoverSessionState {
           setActiveJobId(restored.status === 'running' ? restored.id : null)
         }
       }
-      return
+      return false
     }
 
     await refreshHistory()
+    return true
   }, [activeJobId, clearViewingJob, refreshHistory, stopPoll])
 
+  const clearDeleteError = useCallback(() => setDeleteError(''), [])
+
   return {
     history,
     activeJobId,
@@ -254,5 +267,7 @@ export function useDiscoverSession(): DiscoverSessionState {
     cancelRun,
     loadHistoryJob,
     deleteHistoryJob,
+    deleteError,
+    clearDeleteError,
   }
 }