Remove Alt+digit view shortcuts; views switch only via F1-F4

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/ui/app.go

@@ -275,18 +275,11 @@ func (a *App) handleKey(ev *tcell.EventKey) *tcell.EventKey {
 	return ev
 }
 
-// viewShortcut returns the view index for F1-F4 or Alt+1-4, or -1.
+// viewShortcut returns the view index for F1-F4, or -1.
 func (a *App) viewShortcut(ev *tcell.EventKey) int {
 	if ev.Key() >= tcell.KeyF1 && ev.Key() <= tcell.KeyF12 {
 		return int(ev.Key() - tcell.KeyF1)
 	}
-	if ev.Key() == tcell.KeyRune && ev.Modifiers()&tcell.ModAlt != 0 {
-		for i, v := range a.views {
-			if ev.Rune() == v.key {
-				return i
-			}
-		}
-	}
 	return -1
 }
 

internal/ui/help.go

@@ -6,7 +6,7 @@ import (
 )
 
 const helpText = `[yellow]Global[-]
-  F1-F4, Alt+1-4         switch view
+  F1-F4                  switch view
   Tab, Shift+Tab         switch panel within a view
   ?, F9                  this help (F9 works while typing)
   q, Ctrl+C              quit