docs: regenerate the behaviour spec for RB-07's new tests

The RB-07 commit added three AuthzAuditTests cases and did not regenerate
libs/shared/docs/behaviour-spec.mdx, so the "behaviour spec drift" CI step
was left red on that branch. My mistake: I committed RB-07 and answered a
question before running the gate.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

libs/shared/docs/behaviour-spec.mdx

@@ -21,7 +21,7 @@ tested where._
 Every bullet below is a real test name from the suite — an `it()` title (frontend) or a test
 method name (backend), read as a sentence. Nothing here is hand-written prose: this page
 **is** the suite, reshaped for a business reader. 402 frontend behaviours across
-8 contexts; 225 backend behaviours across 38 test
+8 contexts; 228 backend behaviours across 38 test
 classes.
 
 ## Frontend (by context)
@@ -825,6 +825,9 @@ classes.
 
 - A denied admin action is recorded
 - A reveal attempt is recorded
+- An allowed admin action is recorded
+- A feature flag toggle records which flag changed
+- A refused brief transition is recorded
 - No audit row carries a subjects bsn
 - The audit schema carries no pii