fix: surface errors and polish UX across Step Library and Batch pages

- StepLibraryPage: replace silent console.error with toast.error on edit/save
  failures; replace manual setTimeout toast with toast.success helper
- BatchStatusPage: add error state with retry button for failed session loads
  instead of showing ambiguous "No sessions found"
- StepDetailModal: guard clipboard copy against browser denial (no false
  "Copied!" state on permission error); fix dead "See all reviews" button
  with inline expand/collapse toggle
- StepLibraryBrowser: add "Try again" retry button to error state; retry
  increments a counter that re-triggers both load effects

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/components/step-library/StepDetailModal.tsx

@@ -29,6 +29,7 @@ export function StepDetailModal({ stepId, onClose, onInsert }: StepDetailModalPr
   const [isLoading, setIsLoading] = useState(true)
   const [error, setError] = useState<string | null>(null)
   const [copiedCommandIndex, setCopiedCommandIndex] = useState<number | null>(null)
+  const [showAllReviews, setShowAllReviews] = useState(false)
 
   useEffect(() => {
     const loadStepDetails = async () => {
@@ -53,9 +54,13 @@ export function StepDetailModal({ stepId, onClose, onInsert }: StepDetailModalPr
   }, [stepId])
 
   const handleCopyCommand = async (command: string, index: number) => {
-    await navigator.clipboard.writeText(command)
+    try {
-    setCopiedCommandIndex(index)
+      await navigator.clipboard.writeText(command)
-    setTimeout(() => setCopiedCommandIndex(null), 2000)
+      setCopiedCommandIndex(index)
+      setTimeout(() => setCopiedCommandIndex(null), 2000)
+    } catch {
+      // Clipboard access denied — don't show false "Copied!" state
+    }
   }
 
   const handleInsert = () => {
@@ -66,7 +71,8 @@ export function StepDetailModal({ stepId, onClose, onInsert }: StepDetailModalPr
 
   const Icon = step ? stepTypeIcons[step.step_type as keyof typeof stepTypeIcons] : HelpCircle
   const hasRating = step && step.rating_count > 0
-  const topReviews = reviews.filter(r => r.review_text).slice(0, 3)
+  const allTextReviews = reviews.filter(r => r.review_text)
+  const visibleReviews = showAllReviews ? allTextReviews : allTextReviews.slice(0, 3)
 
   return (
     <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/80 backdrop-blur-sm">
@@ -228,18 +234,21 @@ export function StepDetailModal({ stepId, onClose, onInsert }: StepDetailModalPr
               )}
 
               {/* Reviews */}
-              {topReviews.length > 0 && (
+              {visibleReviews.length > 0 && (
                 <div>
                   <div className="mb-2 flex items-center justify-between">
                     <h3 className="text-sm font-semibold text-foreground">Reviews</h3>
-                    {reviews.length > 3 && (
+                    {allTextReviews.length > 3 && (
-                      <button className="text-xs text-muted-foreground hover:text-foreground hover:underline">
+                      <button
-                        See all {reviews.length} reviews
+                        onClick={() => setShowAllReviews(v => !v)}
+                        className="text-xs text-muted-foreground hover:text-foreground hover:underline"
+                      >
+                        {showAllReviews ? 'Show less' : `See all ${allTextReviews.length} reviews`}
                       </button>
                     )}
                   </div>
                   <div className="space-y-3">
-                    {topReviews.map(review => (
+                    {visibleReviews.map(review => (
                       <div key={review.id} className="rounded-lg border border-border bg-accent/50 p-3">
                         <div className="mb-2 flex items-center justify-between">
                           <div className="flex items-center gap-2 text-sm">

frontend/src/components/step-library/StepLibraryBrowser.tsx

@@ -37,6 +37,7 @@ export function StepLibraryBrowser({ onInsert, onCreateNew, showCreateButton = f
   // UI state
   const [previewStepId, setPreviewStepId] = useState<string | null>(null)
   const [collapsedSections, setCollapsedSections] = useState<Record<string, boolean>>({})
+  const [retryCount, setRetryCount] = useState(0)
 
   // Load initial data
   useEffect(() => {
@@ -59,7 +60,7 @@ export function StepLibraryBrowser({ onInsert, onCreateNew, showCreateButton = f
     }
 
     loadInitialData()
-  }, [])
+  }, [retryCount])
 
   // Load steps when filters change
   useEffect(() => {
@@ -92,7 +93,7 @@ export function StepLibraryBrowser({ onInsert, onCreateNew, showCreateButton = f
     }
 
     loadSteps()
-  }, [searchQuery, selectedCategoryId, selectedStepType, minRating, sortBy, selectedTag, refreshKey])
+  }, [searchQuery, selectedCategoryId, selectedStepType, minRating, sortBy, selectedTag, refreshKey, retryCount])
 
   // Group steps by visibility
   const groupedSteps = useMemo(() => {
@@ -250,8 +251,14 @@ export function StepLibraryBrowser({ onInsert, onCreateNew, showCreateButton = f
             <Loader2 className="h-8 w-8 animate-spin text-muted-foreground" />
           </div>
         ) : error ? (
-          <div className="rounded-lg border border-red-400/20 bg-red-400/10 p-4 text-center text-sm text-red-400">
+          <div className="rounded-lg border border-red-400/20 bg-red-400/10 p-4 text-center">
-            {error}
+            <p className="text-sm text-red-400 mb-3">{error}</p>
+            <button
+              onClick={() => setRetryCount(c => c + 1)}
+              className="rounded-md border border-border px-3 py-1.5 text-sm text-muted-foreground hover:bg-accent hover:text-foreground transition-colors"
+            >
+              Try again
+            </button>
           </div>
         ) : steps.length === 0 ? (
           <div className="rounded-lg border border-border bg-accent/50 p-12 text-center">

frontend/src/pages/BatchStatusPage.tsx

@@ -21,6 +21,7 @@ export default function BatchStatusPage() {
   const [sessions, setSessions] = useState<Session[]>([])
   const [isLoading, setIsLoading] = useState(true)
   const [isRefreshing, setIsRefreshing] = useState(false)
+  const [loadError, setLoadError] = useState<string | null>(null)
   const [batchDate, setBatchDate] = useState<Date | null>(null)
   const pollRef = useRef<ReturnType<typeof setInterval> | null>(null)
 
@@ -30,9 +31,12 @@ export default function BatchStatusPage() {
     try {
       const data = await sessionsApi.list({ batch_id: batchId, size: 100 })
       setSessions(Array.isArray(data) ? data : [])
+      setLoadError(null)
       if (data.length > 0 && data[0].started_at) {
         setBatchDate(new Date(data[0].started_at))
       }
+    } catch {
+      setLoadError('Failed to load batch sessions')
     } finally {
       if (showRefreshing) setIsRefreshing(false)
     }
@@ -48,6 +52,8 @@ export default function BatchStatusPage() {
           loadSessions(),
         ])
         setTree(treeData)
+      } catch {
+        setLoadError('Failed to load batch data')
       } finally {
         setIsLoading(false)
       }
@@ -178,7 +184,17 @@ export default function BatchStatusPage() {
 
       {/* Target cards */}
       <div className="space-y-2">
-        {sessions.length === 0 ? (
+        {loadError ? (
+          <div className="rounded-lg border border-red-400/20 bg-red-400/10 p-4 text-center">
+            <p className="text-sm text-red-400 mb-3">{loadError}</p>
+            <button
+              onClick={() => loadSessions(true)}
+              className="rounded-md border border-border px-3 py-1.5 text-sm text-muted-foreground hover:bg-accent hover:text-foreground transition-colors"
+            >
+              Try again
+            </button>
+          </div>
+        ) : sessions.length === 0 ? (
           <p className="text-center text-[0.875rem] text-muted-foreground py-8">
             No sessions found for this batch.
           </p>
@@ -207,3 +223,4 @@ export default function BatchStatusPage() {
     </div>
   )
 }
+

frontend/src/pages/StepLibraryPage.tsx

@@ -5,6 +5,7 @@ import { usePermissions } from '@/hooks/usePermissions'
 import { stepsApi } from '@/api/steps'
 import { StepLibraryBrowser } from '@/components/step-library/StepLibraryBrowser'
 import { StepFormModal } from '@/components/step-library/StepFormModal'
+import { toast } from '@/lib/toast'
 import type { Step, StepListItem } from '@/types/step'
 
 export default function StepLibraryPage() {
@@ -20,9 +21,6 @@ export default function StepLibraryPage() {
   const [isDeleting, setIsDeleting] = useState(false)
   const [deleteError, setDeleteError] = useState<string | null>(null)
 
-  // Toast for "Save to My Library"
-  const [saveToast, setSaveToast] = useState<string | null>(null)
-
   // Increment to trigger StepLibraryBrowser reload
   const [refreshKey, setRefreshKey] = useState(0)
   const refresh = () => setRefreshKey(k => k + 1)
@@ -32,8 +30,8 @@ export default function StepLibraryPage() {
     try {
       const full = await stepsApi.get(step.id)
       setEditingStep(full)
-    } catch (err) {
+    } catch {
-      console.error('Failed to load step for edit:', err)
+      toast.error('Failed to load step for editing')
     }
   }
 
@@ -68,11 +66,10 @@ export default function StepLibraryPage() {
         category_id: full.category_id,
         tags: full.tags,
       })
-      setSaveToast(`"${full.title}" saved to My Steps`)
+      toast.success(`"${full.title}" saved to My Steps`)
-      setTimeout(() => setSaveToast(null), 3000)
       refresh()
-    } catch (err) {
+    } catch {
-      console.error('Failed to save step:', err)
+      toast.error('Failed to save step to your library')
     }
   }
 
@@ -168,12 +165,6 @@ export default function StepLibraryPage() {
         </div>
       )}
 
-      {/* Save Toast */}
-      {saveToast && (
-        <div className="fixed bottom-6 left-1/2 z-50 -translate-x-1/2 rounded-lg border border-border bg-card px-4 py-2 text-sm text-foreground shadow-lg">
-          {saveToast}
-        </div>
-      )}
     </div>
   )
 }