Add arrow key scrolling for output when focused

- Up/Down move cursor one line (scrolls view)
- Page Up/Down move 20 lines at a time
- Home/End jump to top/bottom
- Keys only active when output buffer is focused (Tab to switch)
- Updated help text with scroll shortcuts

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

agentserver/console/tui_console.py

@@ -201,6 +201,54 @@ class TUIConsole:
             """Switch focus between output and input."""
             event.app.layout.focus_previous()
 
+        # Arrow keys for scrolling output (move cursor to scroll view)
+        @kb.add("up", filter=lambda: self.app.layout.has_focus(self.output.buffer))
+        def handle_output_up(event):
+            """Scroll output up."""
+            buf = self.output.buffer
+            # Move cursor up one line
+            doc = buf.document
+            if doc.cursor_position_row > 0:
+                new_pos = doc.translate_row_col_to_index(doc.cursor_position_row - 1, 0)
+                buf.cursor_position = new_pos
+
+        @kb.add("down", filter=lambda: self.app.layout.has_focus(self.output.buffer))
+        def handle_output_down(event):
+            """Scroll output down."""
+            buf = self.output.buffer
+            doc = buf.document
+            if doc.cursor_position_row < doc.line_count - 1:
+                new_pos = doc.translate_row_col_to_index(doc.cursor_position_row + 1, 0)
+                buf.cursor_position = new_pos
+
+        @kb.add("pageup", filter=lambda: self.app.layout.has_focus(self.output.buffer))
+        def handle_output_pageup(event):
+            """Scroll output up a page."""
+            buf = self.output.buffer
+            doc = buf.document
+            new_row = max(0, doc.cursor_position_row - 20)
+            new_pos = doc.translate_row_col_to_index(new_row, 0)
+            buf.cursor_position = new_pos
+
+        @kb.add("pagedown", filter=lambda: self.app.layout.has_focus(self.output.buffer))
+        def handle_output_pagedown(event):
+            """Scroll output down a page."""
+            buf = self.output.buffer
+            doc = buf.document
+            new_row = min(doc.line_count - 1, doc.cursor_position_row + 20)
+            new_pos = doc.translate_row_col_to_index(new_row, 0)
+            buf.cursor_position = new_pos
+
+        @kb.add("home", filter=lambda: self.app.layout.has_focus(self.output.buffer))
+        def handle_output_home(event):
+            """Scroll to top of output."""
+            self.output.buffer.cursor_position = 0
+
+        @kb.add("end", filter=lambda: self.app.layout.has_focus(self.output.buffer))
+        def handle_output_end(event):
+            """Scroll to bottom of output."""
+            self.output.buffer.cursor_position = len(self.output.buffer.text)
+
         # Output uses BufferControl for native scrolling
         output_control = BufferControl(
             buffer=self.output.buffer,
@@ -422,9 +470,10 @@ class TUIConsole:
         self.print_raw("Shortcuts:", "output.system")
         self.print_raw("  Ctrl+C / Ctrl+D    Quit", "output.dim")
         self.print_raw("  Ctrl+L             Clear output", "output.dim")
-        self.print_raw("  Up/Down            Command history", "output.dim")
+        self.print_raw("  Up/Down            Command history (in input)", "output.dim")
         self.print_raw("  Tab                Switch focus (input/output)", "output.dim")
-        self.print_raw("  Arrow keys         Scroll when output focused", "output.dim")
+        self.print_raw("  Up/Down/PgUp/PgDn  Scroll (when output focused)", "output.dim")
+        self.print_raw("  Home/End           Jump to top/bottom of output", "output.dim")
 
     async def _cmd_status(self, args: str):
         """Show status."""