v5.5.1

Changelog

• 5a4dd02 release v5.5.1
• 17bba06 Merge pull request #25 from Seibert-Data/feature/fakevault-e2e
• e9f5862 test(e2e): add config-generate + auth-failure(401) cases; fakevault enforces --user/--pass creds
• 5a91e33 fix(e2e): put pass in config so CI never hits the Keychain; add helper/lib.sh + config-parse/not-found/config-arg+env cases
• ce0e21f test(e2e): add cmd/fakevault + make e2e + CI job for hermetic scenarios