docs: correct historical ZUPT release labels

CHANGELOG.md

@@ -14,6 +14,9 @@ not promoted because its source-policy test assumed LF bytes for a Windows
   change.
 - Realign current documentation, package, workflow, artifact, and tag references
   to 5.2.4 while keeping generated binaries outside Git and source archives.
+- Correct three internal regression-test headers so pre-3.0 product releases
+  retain the historical ZUPT name; VaptVupt remains only the bundled codec and
+  compatibility-facing identifier where applicable.
 - Require fresh exact-`v5.2.4` source, checksum, hosted CI, native-platform,
   package, and promotion evidence; no 5.2.3 result transfers automatically.
 - Keep authenticated OBS/Factory validation pending and retain the unresolved,

tests/test_f08_topmac.sh

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 # Copyright (c) 2025-2026 Cristian Cezar Moisés
 #
-# F-08 regression test (VaptVupt 2.3.0).
+# F-08 regression test (ZUPT 2.3.0).
 #
 # A v1.5+ archive is tampered at each previously-cosmetic header/footer byte;
 # every mutation MUST be detected (top-MAC verifies header+footer[0..23]).

tests/test_f09_preface.sh

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 # Copyright (c) 2025-2026 Cristian Cezar Moisés
 #
-# F-09 regression test (VaptVupt 2.3.1).
+# F-09 regression test (ZUPT 2.3.1).
 #
 # F-09 closed the per-block frame preface tamper window by:
 #   1. Binding the canonical preface (block_type, codec_id, block_flags,

tests/test_f11_authfail_message.sh

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 # Copyright (c) 2025-2026 Cristian Cezar Moisés
 #
-# F-11 regression test (VaptVupt 2.4.2).
+# F-11 regression test (ZUPT 2.4.2).
 #
 # F-11: pre-2.4.2 the AIT-fail message said "archive header or footer has
 # been tampered with" in both the actual-tamper case AND the wrong-password