Add PageUp and PageDown keybind support

apps/desktop/src/lib/keybinds/actions.ts

@@ -85,8 +85,8 @@ export const KEYBIND_ACTIONS: readonly KeybindActionMeta[] = [
   { id: 'session.newWindow', category: 'session', defaults: ['mod+shift+n'] },
   // ⌃Tab / ⌃⇧Tab — the universal tab-cycle chord. Literally Control, not Cmd
   // (macOS reserves Cmd+Tab for app switching); see `ctrl` in combo.ts.
-  { id: 'session.next', category: 'session', defaults: ['ctrl+tab'] },
-  { id: 'session.prev', category: 'session', defaults: ['ctrl+shift+tab'] },
+  { id: 'session.next', category: 'session', defaults: ['ctrl+tab', 'ctrl+pagedown'] },
+  { id: 'session.prev', category: 'session', defaults: ['ctrl+shift+tab', 'ctrl+pageup'] },
   ...SESSION_SLOT_ACTIONS,
   { id: 'session.focusSearch', category: 'session', defaults: ['mod+shift+f'] },
   { id: 'session.togglePin', category: 'session', defaults: [] },

apps/desktop/src/lib/keybinds/combo.test.ts

@@ -82,6 +82,13 @@ describe('comboFromEvent — ctrl as a distinct modifier on macOS', () => {
     expect(comboFromEvent(keydown({ code: 'Tab', ctrlKey: true }))).toBe('mod+tab')
     expect(comboFromEvent(keydown({ code: 'Tab', ctrlKey: true, shiftKey: true }))).toBe('mod+shift+tab')
   })
+
+  it('recognizes PageUp and PageDown chords', async () => {
+    const { comboFromEvent } = await loadCombo('MacIntel')
+
+    expect(comboFromEvent(keydown({ code: 'PageUp', ctrlKey: true }))).toBe('ctrl+pageup')
+    expect(comboFromEvent(keydown({ code: 'PageDown', ctrlKey: true }))).toBe('ctrl+pagedown')
+  })
 })
 
 describe('canonicalizeCombo', () => {
@@ -116,6 +123,13 @@ describe('formatCombo — honest Control labels', () => {
     expect(formatCombo('ctrl+tab')).toBe('Ctrl+⇥')
     expect(formatCombo('ctrl+shift+tab')).toBe('Ctrl+Shift+⇥')
   })
+
+  it('renders PageUp and PageDown with compact labels', async () => {
+    const { formatCombo } = await loadCombo('Win32')
+
+    expect(formatCombo('ctrl+pageup')).toBe('Ctrl+PgUp')
+    expect(formatCombo('ctrl+pagedown')).toBe('Ctrl+PgDn')
+  })
 })
 
 describe('actionAllowedInInput', () => {

apps/desktop/src/lib/keybinds/combo.ts

@@ -33,6 +33,8 @@ const CODE_TO_KEY: Record<string, string> = {
   Escape: 'escape',
   Backspace: 'backspace',
   Tab: 'tab',
+  PageUp: 'pageup',
+  PageDown: 'pagedown',
   ArrowUp: 'up',
   ArrowDown: 'down',
   ArrowLeft: 'left',
@@ -169,6 +171,8 @@ const TOKEN_LABELS: Record<string, string> = {
   escape: 'Esc',
   backspace: '⌫',
   tab: '⇥',
+  pageup: 'PgUp',
+  pagedown: 'PgDn',
   space: 'Space',
   up: '↑',
   down: '↓',