- cmd/comparecache: compares Go cache vs Node.js LIVE_cache at filename
level, categorizes differences (meta-filtering, version depth, source
tarballs, unsupported sources, real asset differences)
- COMPARISON.md: per-package checklist with 91 live packages categorized
- webicached: add -no-fetch flag to classify from existing raw data only
- GO_WEBI.md: update Phase 1 checkboxes for completed items