nvrsion: Add: Fix “jump to bottom” chevron button visibility in iOS chat: it now appears on first scroll up, fixes repeated scrolling requirement.

Nucleic-Promote: 1
Co-authored-by: Nucleic <[email protected]>

NucleicRemote/NucleicRemote/Views/SessionDetailView.swift

@@ -556,6 +556,17 @@ struct TranscriptList: View {
                 guard transcriptSettling, transcriptContentHeight > 0 else { return }
                 try? await Task.sleep(for: .milliseconds(80))
                 if Task.isCancelled { return }
+                // Pin to the true bottom before opening the gate. The settling layout lands a
+                // hair off the bottom, so the passive `.defaultScrollAnchor` alone leaves the
+                // scroll geometry reading "not at bottom" — and that stale reading latches
+                // `onScrollGeometryChange`'s tracked value at `false` while the gate above holds
+                // `isScrolledToBottom` at `true`. Because the callback only fires on a *change*,
+                // the user's first real scroll-up (still `false`) then never fires it: the chevron
+                // never appears and live output keeps yanking the view to the bottom, until a
+                // down-then-up round-trip finally re-emits the change. An explicit pin nudges the
+                // offset the last hair, forcing a fresh "at bottom" emission that re-syncs the
+                // tracker with the gate. Mirrors the Mac's reveal pin.
+                scrollToEnd(proxy, animated: false)
                 transcriptSettling = false
             }
             // Coalescing means item count lags event count; key the autoscroll on the raw stream