Transcript Incremental Projection

Nucleic-Session: 0FFD007B-0696-4517-9429-129C7B0FD5AC
Co-authored-by: Nucleic <[email protected]>

NucleicRemote/NucleicRemote/Views/SessionDetailView.swift

@@ -707,11 +707,15 @@ struct TranscriptList: View {
             // user is already parked there. Scrolling up to read history is never yanked down,
             // and a finger actively on the transcript is never fought mid-drag (the drag that
             // takes them past the unfollow threshold flips the gate; until then the native
-            // bottom anchor alone keeps content pinned, without an animated scroll grabbing the
+            // bottom anchor alone keeps content pinned, without a scroll grabbing the viewport
-            // viewport back out of their hand).
+            // back out of their hand). Never animated: while pinned, the bottom anchor provides
+            // the visual continuity and this call only closes the last few points — but a
+            // session still *opening* keeps receiving history merges (cached transcript,
+            // reconnect backfill) after the settle window closes, and animating those rode the
+            // viewport visibly down through the whole transcript instead of landing at the end.
             .onChange(of: events.count) {
                 if isScrolledToBottom, !isUserScrolling {
-                    scrollToEnd(proxy, animated: !transcriptSettling)
+                    scrollToEnd(proxy, animated: false)
                 }
             }
             // An explicit jump — the chevron or sending a message — always wins, and it *is* the