fix: workspace selection race, unhandled delete rejections

- RunnerPage: store continuation workspace in ref to survive location.state
  clearing; remove stale location.state read from apps initializer
- RunsHistoryPage: catch deleteRun failures to prevent optimistic UI update
- HistoryPage: catch clearHistory/deleteHistoryEntry failures gracefully

Author: atomantic

client/src/pages/HistoryPage.jsx

@@ -35,14 +35,16 @@ export function HistoryPage() {
   }, [loadData]);
 
   const handleClear = async () => {
-    await api.clearHistory();
+    const result = await api.clearHistory().catch(() => null);
+    if (result === null) return;
     setConfirmingClear(false);
     loadData();
   };
 
   const handleDelete = async (id, e) => {
     e.stopPropagation();
-    await api.deleteHistoryEntry(id);
+    const result = await api.deleteHistoryEntry(id).catch(() => null);
+    if (result === null) return;
     setHistory(prev => prev.filter(entry => entry.id !== id));
     if (expandedId === id) setExpandedId(null);
   };

client/src/pages/RunnerPage.jsx

@@ -28,12 +28,13 @@ export function RunnerPage() {
   const [continueContext, setContinueContext] = useState(null);
   const fileInputRef = useRef(null);
   const outputRef = useRef(null);
+  const continueWorkspaceRef = useRef(location.state?.continueFrom?.workspacePath ?? null);
 
   // Get the selected app's repoPath
   const selectedApp = apps.find(a => a.id === selectedAppId);
   const workspacePath = selectedApp?.repoPath || '';
 
-  // Handle continuation context from navigation
+  // Handle continuation context from navigation — store continueFrom and clear location state once
   useEffect(() => {
     const continueFrom = location.state?.continueFrom;
     if (continueFrom) {
@@ -45,17 +46,10 @@ export function RunnerPage() {
       if (continueFrom.model) {
         setSelectedModel(continueFrom.model);
       }
-      // Set workspace from previous run if available
-      if (continueFrom.workspacePath) {
-        const app = apps.find(a => a.repoPath === continueFrom.workspacePath);
-        if (app) {
-          setSelectedAppId(app.id);
-        }
-      }
       // Clear location state to prevent re-triggering on refresh
       navigate(location.pathname, { replace: true, state: null });
     }
-  }, [location.state, apps]);
+  }, [location.state, navigate]);
 
   useEffect(() => {
     Promise.all([
@@ -66,12 +60,11 @@ export function RunnerPage() {
       // Filter out PortOS Autofixer (it's part of PortOS project)
       const filteredApps = appsData.filter(a => a.id !== 'portos-autofixer');
       setApps(filteredApps);
-      // Set workspace: prefer continuation context, then PortOS, then first app
+      // Set workspace: prefer continuation context (stored in ref), then PortOS, then first app
       setSelectedAppId(prev => {
         if (prev) return prev;
-        const continueWorkspacePath = location.state?.continueFrom?.workspacePath;
-        if (continueWorkspacePath) {
-          const continueApp = filteredApps.find(a => a.repoPath === continueWorkspacePath);
+        if (continueWorkspaceRef.current) {
+          const continueApp = filteredApps.find(a => a.repoPath === continueWorkspaceRef.current);
           if (continueApp) return continueApp.id;
         }
         const portosApp = filteredApps.find(a => a.name === 'PortOS');

client/src/pages/RunsHistoryPage.jsx

@@ -41,7 +41,8 @@ export function RunsHistoryPage() {
 
   const handleDelete = async (id, e) => {
     e.stopPropagation();
-    await api.deleteRun(id);
+    const deleted = await api.deleteRun(id).catch(() => null);
+    if (!deleted && deleted !== undefined) return;
     setRuns(prev => prev.filter(run => run.id !== id));
     if (expandedId === id) setExpandedId(null);
   };