60-rewrite-marketplace.mjs: flips a named subset (--only) or all (--all) plugin entries from local './plugins/<name>' to external {source:'url', url, ref:v<version>} read from plugin-map.json. Validates output (name+source+description; external => https url under Forgejo /open/ + ref). Writes to a required --out path only — never the live .claude-plugin/marketplace.json (D8). Enables the mixed-source live states (SC3/SC8).
Verify: --only voyage => 9 local + 1 external (https + ref:v5.1.1), 0 ssh. Test 4/4 (mixed-source, --all all-external, refuses --out-less run, rejects unknown name).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>