ui: Data Generation view (per-DB tabs, light generate, run status) + topology pulse

ui/src/hooks/useCommandCenter.ts

@@ -68,7 +68,14 @@ export function useCommandCenter() {
   const [selectedNode, setSelectedNode] = useState<TopologyNode | null>(null)
   const [nodeDetail, setNodeDetail] = useState<NodeDetail | null>(null)
   const [nodeBusy, setNodeBusy] = useState(false)
-  const [mainView, setMainView] = useState<'platform' | 'approvals' | 'presentation' | 'dataquality' | 'knowledge' | 'storage' | 'hdfs' | 'search'>('platform')
+  const [mainView, setMainView] = useState<'platform' | 'approvals' | 'presentation' | 'dataquality' | 'knowledge' | 'storage' | 'hdfs' | 'search' | 'datagen'>('platform')
+  const [genPulse, setGenPulse] = useState(false)
+  const genPulseTimer = useRef<ReturnType<typeof setTimeout> | null>(null)
+  const pulseFlow = useCallback(() => {
+    setGenPulse(true)
+    if (genPulseTimer.current) clearTimeout(genPulseTimer.current)
+    genPulseTimer.current = setTimeout(() => setGenPulse(false), 60000)
+  }, [])
   const [approvalHighlight, setApprovalHighlight] = useState(false)
   const [workbenchMode, setWorkbenchMode] = useState<'agent' | 'sql-postgres' | 'sql-mysql' | 'sql-mongodb' | 'sql-trino' | null>(null)
   const [chatExpanded, setChatExpanded] = useState(false)
@@ -336,6 +343,8 @@ export function useCommandCenter() {
     nodeBusy,
     mainView,
     setMainView,
+    genPulse,
+    pulseFlow,
     approvalHighlight,
     setApprovalHighlight,
     workbenchMode,