The autocomplete panel is the only in-app surface for discovering slash
commands, but several suggestions do not match what CommandProcessor
accepts, so tapping them inserts a command that returns "unknown
command":
- CommandInfo suggests /dm, /favorite, /unfavorite, but the processor
only handles /m, /msg, /fav, /unfav. Aliases are aligned to the
accepted spellings (msg, fav, unfav).
- Favorites are suggested only in geohash contexts (isGeoPublic ||
isGeoDM) — exactly where the processor rejects them ("favorites are
only for mesh peers"). The gating is inverted so they appear in mesh,
where they work.
Also, small related fixes to the discovery surface:
- /help is now handled (the ChatViewModel command docstring already
claimed it existed); it prints a local system line listing the valid
commands, and the unknown-command error points at it.
- The suggestion panel keeps the matched command's usage row (e.g.
"/msg <nickname>") visible while arguments are typed, instead of
vanishing at the first space; in that mode the row is informational
and no longer overwrites the draft on tap.
New string is added source-language (en) only. The CommandInfo contract
test is updated to the corrected metadata.
