v0.0.3

Bug fix release. Cancelling ('q') the S3 bucket picker inside Backup Archive & Trim exited the whole program instead of returning to the previous menu -- a regression, since cancelling the instance picker one step earlier in the same workflow already backed out correctly. backupArchiveAndTrim's bucket-selection step now maps that cancellation the same way, with a regression test covering it. Also improves every Menu-tier huh.Select picker's on-screen hint (bucket/AMI/key-pair/launch-template selection, and every domain/action menu) to mention '/' to filter alongside 'q' to cancel/go back/exit, so it's clear before typing that a bare 'q' quits rather than filters; the hint wording is now centralized as shared constants so it can't drift out of sync again. No functional changes beyond these two fixes -- all v0.0.2 functionality is unchanged.

Full Changelog: v0.0.2...v0.0.3