Repo tidy: logs consolidated, 15/16 scripts tracked, docs synced (#615/#611/#603)

Run outputs moved to logs/ (incl. sda partition-table backup). New from
the 15:57-16:03 parallel session: 16-grow-root-online.sh (RAN: / = 431G
online, swap removed by design — GROW-ROOT-RUNBOOK superseded) and
15-docker-to-data2.sh (staged, not run). README/NEXT/RUNBOOK/REBUILD
reflect current reality. Moot rdp-testprep timer removed from the VM.

Details: https://projects.knownelement.com/issues/615

GROW-ROOT-RUNBOOK.md

@@ -1,5 +1,10 @@
 # Manual runbook: grow / from 279G to ~505G (VM 5111, ultix-streaming)
 
+> **SUPERSEDED 2026-09-01 16:03**: done ONLINE, no reboot, by
+> `16-grow-root-online.sh` (parallel crush session) — / is 431G, swap
+> removed by design, partition-table backup in logs/ and /root/.
+> Kept below for the manual rollback procedure only.
+
 YOU run every command, one at a time, checking the output before the next.
 Nothing here is automated, scheduled, or boot-triggered. Storage ops are the
 only steps in this whole effort that no script touches.