v0.20.0

Added

• The agent-facing mod text also comes in Simplified Chinese and Spanish.
  LICH_PROMPT_LANG values zh-CN and es 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.

• The text the mods add for the agent follows lich's prompt language. The
  side-question preamble, the subagent card notes and denies, the edit guard's
  note and the self-command notes now come in English or Brazilian Portuguese,
  chosen by LICH_PROMPT_LANG, which lich exports into every session; an
  empty or unknown value is English. [lich], tool and command names and
  status values stay literal, and Successfully stopped task keeps Claude
  Code's own wording. The texts live in hooks/prompt-text.js.

• A lich subagent worker whose turn ends blank now says so. A final turn
  whose message is blank, with nothing left running in the background, posts
  unanswered: "blank" to /mod/answer, so the caller hears the errand ended
  instead of waiting on it. The plugin reports blank turns only: Claude Code
  ends a refused turn and one an API error ended through StopFailure, with
  no Stop and no background_tasks, so the mod cannot tell they left nothing
  running and does not report them. Needs a lich that accepts unanswered.

• Every state report names the conversation it comes from, in
  provider_session_id, so lich can drop one from an agent CLI the session
  runs as a tool (claude -p, cursor-agent -p), which inherits the session's
  LICH_* variables and used to report as the card. The scripts, opencode, omp
  and the compacting mod all send it; one the harness did not hand over is left
  out. report-state.sh now reads stdin for every state, with a one-second
  bound so a pipe nobody writes to cannot hold the turn.