New commands: author (generates proposal JSON per system from wiki + DB
data), commit-system (writes approved proposal to DB), wipe-system
(clears a system's bodies/stations), unfinished (lists systems without
bodies). Removed the batch populate command.
The author command reads the wiki page, extracts habitable/inhabited
counts, generates a body ID matrix based on star type, and writes a
reviewable JSON proposal. Human reviews, edits, then commits.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>