SHARD-WP-0003 T7. The minimal file-store floor: one Perl CGI script over
plain-text page files + a keep/ revision dir, no DB/API. Anchors the
graceful-degradation baseline / minimal capability-profile floor -- every
richer shard is measured against it; capability-awareness in its purest form
(profile must express absence; truncated history reported honestly). UC-82.
Enriched UC-40/01/36/41. Marks T7 done. Feeds SHARD-WP-0002 T11/T13.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
