v0.20.5

Added

• The agent-facing mod text also comes in Japanese, Korean and Russian.
  LICH_PROMPT_LANG values ja, ko and ru select the new catalogs in
  hooks/prompt-text.js, translated from the English source; literals such as
  [lich] and tool and command names stay as they are.

Fixed

• An omp session that resumes another conversation tells lich which. A
  /resume inside omp left lich holding the conversation the card opened
  with, so a restart resumed the old one and lich could not warn when the
  conversation was already open in another card. The switch is now reported
  as it happens.