feat(docs): add wiki stub system for 300 star systems
Generated wiki stubs at docs/wiki/systems/{GJ-id}/index.md for all
300 systems. Each stub has YAML frontmatter (54 machine-readable
columns) + markdown body (5 authored text sections) + derived fields.
13 columns pre-filled from star-map.json (identity, gate infrastructure,
location, wave, earth_proximity). 55 columns await authoring.
Includes:
- tooling/wiki/generate-stubs.py — template renderer, idempotent
- tooling/wiki/extract-csv.py — wiki→CSV extractor with fill rate report
- docs/design/star-systems.csv — initial CSV at 19.3% completion
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>