feat(cli): add 'view' as alias for 'show' command (#1249)

Users naturally try 'bd view <id>' when they want to see an issue.
Adding 'view' as an alias improves discoverability and UX.

Fixes bd-bpx35

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

cmd/bd/show.go

@@ -17,6 +17,7 @@ import (
 
 var showCmd = &cobra.Command{
 	Use:     "show [id...]",
+	Aliases: []string{"view"},
 	GroupID: "issues",
 	Short:   "Show issue details",
 	Args:    cobra.MinimumNArgs(1),