- Inject bonfire.Output from stdin/stdout/stderr with stdlib widgets and x/term
- Degrade spinner, progress, table and prompts without a TTY or color
- Reject plugin command names that are not namespace:verb
- App-scoped typed Publish/Lookup with duplicate-provider errors
- Set plugin IDs before Register so HasPlugin sees the full set
- Greeter uses pact.OptionalMessage without importing optional
- Cover typed Publish/Lookup, duplicate providers and HasPlugin
- Require missing/cycle errors to name plugin IDs before Boot
- Assert greeter works with and without an optional extra
