fix(ui): stabilize workplace chat scrolling

opc/plugins/office_ui/frontend_src/lib/progressEntryKey.ts

@@ -7,30 +7,39 @@ function compact(value: unknown): string {
     .slice(0, 96)
 }
 
-export function progressEntryKey(entry: ProgressEntry, fallbackIndex = 0): string {
+export function progressEntryKey(entry: ProgressEntry): string {
   const stableId = entry.itemId || entry.streamId || entry.toolCallId || entry.permissionGroupKey
   if (stableId) {
     return `${entry.type}:${compact(entry.turnId)}:${compact(stableId)}`
   }
 
-  if (entry.type === 'thinking') {
-    return `thinking:${compact(entry.turnId) || compact(entry.executionMode) || compact(entry.summary) || 'stream'}:${fallbackIndex}`
+  if (entry.type === 'thinking' || entry.type === 'assistant') {
+    return `${entry.type}:${compact(entry.turnId) || compact(entry.executionMode) || 'stream'}:${
+      Number.isFinite(entry.timestamp) ? entry.timestamp : ''
+    }`
   }
 
-  if (entry.type === 'tool_call' && entry.turnId) {
-    return `tool:${compact(entry.turnId)}:${compact(entry.summary) || 'tool'}:${fallbackIndex}`
+  if (entry.type === 'tool_call') {
+    return `tool:${compact(entry.turnId) || 'turnless'}:${compact(entry.summary) || 'tool'}:${
+      Number.isFinite(entry.timestamp) ? entry.timestamp : ''
+    }`
   }
 
   if (entry.turnId && typeof entry.seq === 'number') {
     return `${entry.type}:${compact(entry.turnId)}:seq:${entry.seq}`
   }
 
-  return [
+  const fallbackParts: Array<string | number> = [
     entry.type,
     compact(entry.turnId),
+  ]
+  if (typeof entry.seq === 'number' && Number.isFinite(entry.seq)) {
+    fallbackParts.push(`seq-${entry.seq}`)
+  }
+  fallbackParts.push(
     Number.isFinite(entry.timestamp) ? entry.timestamp : '',
     compact(entry.summary),
     compact(entry.detail),
-    fallbackIndex,
-  ].join(':')
+  )
+  return fallbackParts.join(':')
 }