Docs(release): Add note for registry rebuild

Part of #893 (#851)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Signed-off-by: Andrew Grimberg <tykeal@bardicgrove.org>

releasenotes/notes/trust-rebuilt-registry-50a879d4a17ec391.yaml

@@ -0,0 +1,12 @@
+---
+fixes:
+  - |
+    A corrupt door code registry no longer withholds new door codes
+    indefinitely on sites where every entry has a lock. Once every entry
+    with a lock has read its whole slot range, the rebuilt registry is
+    trusted and issuance resumes. Slots excluded with
+    ``rental_control.set_slot_exclusion`` count as read, so an excluded
+    dead slot no longer holds recovery back. A lock that cannot be read
+    still withholds new codes, and the adoption notification now says
+    so and names the unreachable lock. Diagnostics list the entries
+    whose lock or slot range has not been read yet.