docs: R-182 closed, R-90 closed on measurement, R-86 unblocked, ep0 record corrected

R-182 CLOSED (controller v0.194.0 + hub v0.90.0/.1), proven live on demo-hp. The
hub's notification_log for the run reads: two per-app failures RECORDED, one
digest SENT naming both, and the customer channel SKIPPED with operator_only.
Against the measured previous behaviour — two failures, one email naming one
app, one leaving no trace anywhere.

Scenario D proved itself on an event I had not planned: disk_critical alarmed on
two filesystems, the second was collapsed by the cooldown, and that collapse is
now visible WITH ITS KEY. Yesterday it would have left nothing at all.

A gap the spec did not anticipate is recorded with its fix: the per-app event
also fires from the periodic sweep, outside any run, so making it record-only
would have created a NEW silence. The sweep emits a digest too, with no run_id,
so it stays under the ordinary hourly cooldown.

ep0: MEASURED on the box — 7757 MB (8 GB), 4 vCPU, and the 4 GiB swapfile
SURVIVED the resize and is active (checked, because a resize is a stop/start).
The 40 GB local disk is UNCHANGED, so no disk figure was touched anywhere.

Five documents corrected — three of which the task's list did not name, found by
searching. Two audit/evidence documents ANNOTATED, body untouched: they record
what was true when written and that is their value.

R-90 CLOSED. R-86 unblocked and re-ranked, stated honestly: 8 GB is comfortable,
not unbounded — the original OOM was a 14.46 GB restore — so the restore-test
cadence should still be paced, just not by fear of the endpoint.

target-selection.md's "D-d did not name ep0 either way" is deliberately left
standing. It is the operator's question, not CC's.

STATUS.md 127 -> 83 lines, items rather than sentences.

documentation/tests/campaign10-evidence-2026-07-31/state/phaseA-journal.md

@@ -139,7 +139,7 @@ is not reachable, for two reasons that are each **already-recorded deliberate po
    `endpoint_id` only; per-endpoint allocation is an explicitly deferred arc (`hub/README.md:260`).
 
 So the only two configurations are: *DR tier on* → the campaign's PBS traffic lands on **ep0**, which is
-Tier 2, the offsite of last resort, RAM-constrained (3.8 GB, R-90) and fenced by §3 — or *DR tier off* →
+Tier 2, the offsite of last resort, RAM-constrained (3.8 GB, R-90 — **note added 2026-08-03: ep0 has since been rescaled to a CX33 with 8 GB RAM; this journal records what was true when it was written and is deliberately not revised**) and fenced by §3 — or *DR tier off* →
 no Tier 3 at all. **Chosen: DR tier OFF, offsite OFF**, which is the only option §3 permits.
 
 Consequence, stated plainly rather than discovered later: the campaign touches **neither ep0 nor the