fix(desktop): scroll to bottom when user types to prevent stuck scrollback

When the user scrolled up in the terminal's scrollback buffer and then
typed (e.g., responding "Yes" to Claude Code), the view could remain
showing old content instead of auto-scrolling to follow new output.

Added scrollToBottom() method that snaps the view to the latest output
whenever the user presses a key. This ensures the user always sees the
response after typing input.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: grokify

apps/desktop/Sources/PlexusOneDesktop/Views/AppTerminalView.swift

@@ -22,6 +22,18 @@ class AppTerminalView: LocalProcessTerminalView {
         // The parent class layout() handles this
     }
 
+    // MARK: - Scrolling
+
+    /// Scroll the terminal view to show the latest output (bottom of buffer)
+    /// Call this when the user sends input to ensure they see the response
+    func scrollToBottom() {
+        // Only scroll if we're not already at the bottom
+        // scrollPosition 1.0 = bottom, 0.0 = top
+        if scrollPosition < 1.0 {
+            scroll(toPosition: 1.0)
+        }
+    }
+
     // MARK: - Mouse Wheel Event Handling
 
     /// Send mouse wheel event to terminal application (e.g., tmux with mouse mode)

apps/desktop/Sources/PlexusOneDesktop/Views/TerminalViewRepresentable.swift

@@ -64,6 +64,14 @@ class TerminalContainerView: NSView {
         terminalView.mouseDown(with: event)
     }
 
+    override func keyDown(with event: NSEvent) {
+        // When user types, ensure we're showing the latest output
+        // This prevents "stuck in scrollback" issues where old content is visible
+        terminalView.scrollToBottom()
+        // Forward to terminal for processing
+        terminalView.keyDown(with: event)
+    }
+
     /// Check if this terminal has focus and notify if changed
     func updateFocusState() {
         let isFocused = window?.firstResponder === terminalView