docs(ri-050): fix the TASKS table (10 columns restored) and add the pipeline-timing caveat (#1315 review)

rev-code-02 REQUEST_CHANGES (review 230):

- BLOCKER: the truth-sync edit appended an 11th cell to three rows and an
  11th separator group; GFM then renders no table at all. Fixed: content
  folded into the existing notes cells, separator back to 10 groups, all
  rows verified 10 columns.
- SHOULD FIX: every cited pipeline (incl. headline 2517) finished by
  00:34Z, before the registry pin landed at 23:42:05Z. The pack now says
  so itself: the A/B proves the credential value at identical commits and
  nothing about the later pin; no cited pipeline exercises post-pin state.

docs/release-integrity/release-evidence.md

@@ -81,6 +81,15 @@ variable; the stored value is byte-intact. Retry was serialized (sole run in
 flight; merge-purpose CI queue guard had blocked on 2512's terminal failure
 at the `next` head, which this retry also clears). The item is closed.
 
+**Timing caveat (recorded so the pack does not outlive the memory of what the
+pin was).** Every pipeline this pack cites — including headline 2517 —
+finished by 2026-08-19 00:34Z, which is BEFORE the registry credential pin
+landed at 2026-08-19 23:42:05Z. The A/B above remains sound regardless: it
+compares identical commits (d4d32a8) with only the secret differing, so it
+proves the credential value, not anything about the later pin. No pipeline
+cited in this pack exercises the post-pin registry state; a green trunk
+publish after the pin is a separate fact that this pack does not claim.
+
 ## Process record (audit trail)
 
 - Merges executed under the jarvis principal (topher seat; identity provisioning