release-renumber-sweep: annotate stale wave-7 release-pass references

Sweep of docs/reviews/ and tasks/ per the plan's §Wave 8 historical
note: 'wave 7'-means-release-pass references annotated or reworded
per the review-wave-5.md renumber-annotation precedent; genuine
fuzzing-wave/review-7 references untouched. Out-of-scope
architecture-doc trail records documented in the task's Notes.
12 annotated, 1 reworded (live pointer); taskgraph validate green.

tasks/review-wave-6.md

@@ -70,7 +70,8 @@ contract and the pinned ADR-024 text, and audit:
 - docs/architecture/engine-mem.md
 - tasks/review-wave-3.md / tasks/review-wave-4.md (the gate pattern)
 - docs/reviews/003-wave-5-general-review.md (Finding 1's disposition
-  trail; Findings 2–3's wave-7 park)
+  trail; Findings 2–3's pre-release-pass park — wave 8 since the
+  fuzzing wave's renumber, 2026-10-10)
 
 ## Notes
 
@@ -125,8 +126,9 @@ are recorded with dispositions, none mem-divergent from the engines.
   share the shape in principle (offset assigned pre-commit, wake
   post-commit — the "pg-shaped story" the mem docs cite), and nothing
   contract-side pins wake-fire order vs offset order. Disposition:
-  this is a contract-level tolerance nobody pinned, not a mem-local
-  divergence — recorded for the wave-7 pre-release pass to either
+  this is a   contract-level tolerance nobody pinned, not a mem-local
+  divergence — recorded for the pre-release pass (wave 7 at writing —
+  wave 8 since the fuzzing wave's renumber) to either
   document as tolerated or amend as ADR text (wake order per stream =
   offset order). Mem's declared posture is current-thread-clean
   (engine-mem.md) and the suite's mem column proves it under the
@@ -257,7 +259,8 @@ arithmetic equivalence actually asserted — and the wasm32 acceptance
 items verified. The unpinned contract-adjacent observations (the
 multi-thread wake-ordering tolerance, three ADR-023 §2 table
 classifications, the receiver try_recv closed shape) are recorded
-above with their dispositions for the wave-7 pre-release pass; none
+above with their dispositions for the pre-release pass (wave 7 at
+writing — wave 8 since the fuzzing wave's renumber); none
 blocks. The rider (`pg-fix-scheduler-tick-seam`) closed Finding 1.
 Task files audited: all eleven dependency tasks completed with
 Notes/Summary filled.