docs+memory: catch up — domain, Sentry, ops bundle, prod wipe Apr26
- README: status table updated to 2026-04-26 (gendsgn.ru pending DNS,
Sentry live, healthchecks all green, multi-stage images deployed),
added ops/ and backend/db/init/ to repo layout, "operational gotchas"
section (restart vs --force-recreate; reset --hard clobbers manual edits).
- memory/memory-gendesign.jsonl: +5 entities (Domain_Setup_Apr26,
Sentry_Setup_Apr26, OpsBundle_Apr26, Production_Wipe_Apr26, DockerOps_Apr26)
+ 8 relations linking them into the graph. 34 lines → 47.
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