archive: inventory Brick meme corpus

Closes #1 (closed). Inventory only: docs/imports/brick-archive-inventory.json — 54 files, 72144951 bytes, 0 duplicate hash groups, source_url 53/54, 1 index-path relocation (uptime-sentence -> ominous-watchdog/), 0 missing. sha256+dimensions verified. No images. Merge remains with Herman.