Add friendly scrape names and a completeness check

CURRENT.md

@@ -40,6 +40,15 @@ mobile draft at 390px.
   - [x] C11 preview caching: Discord-hosted image/GIF previews (WebP 320px, hash-addressed, 5 MiB
     cap, one attempt) run after every walk in both modes. Live run `...-20260916090722`:
     `previewed: 2`; thumbs served over `/api/media/<scrape>/<item>/thumb` (200).
+  - [x] C59 Scrape names and the completeness check. Scrape listings (History, Clean media,
+    Bot-tab job/lane cards) now lead with the first two words of the channel or group-chat name
+    plus the scrape id. New `poc/scripts/verify-scrapes.ts` (`pnpm verify:scrapes`) checks every
+    index: done state, no lastError, messages non-zero, messages vs the Discord search total, and
+    the oldest message against the source's snowflake creation time (60-day grace). Scrapes a
+    later full walk supersedes are reported as `old`, not failures. Result: 10 complete, 4
+    superseded, 1 genuinely incomplete — the early DM test scrape
+    `805255536223715370-20260916215657` (10 messages, pagination stopped before the fix, never
+    re-scraped).
   - [x] C58 Titles from Discord's embed cache. Gone YouTube videos have no oEmbed answer, but
     Discord keeps the embed title (and, with the rebuilt core bundle, the author/channel). The
     title lane now asks the source message's embed first and only then the provider oEmbed; the