Clear audio runtime baseline after combo fix

docs/testing.md

@@ -277,7 +277,7 @@ Current baseline on the real runtime:
 - `world`: `0`
 - `actor`: `5`
 - `effect`: `12`
-- `audio`: `1`
+- `audio`: `0`
 
 Audio scenario validator:
 
@@ -293,10 +293,8 @@ This validator checks the runtime audio script layer:
 - every `SoundDataNN` reference to `wav/mp3`
 - resolution against the effective virtual audio namespace used by the client
 
-Current real-runtime findings now show a single historical audio content issue:
-`sound2/sound/pc2/assassin/dualhand_sword/combo7.wav`. That remaining issue is
-recorded in the shared runtime baseline and does not fail the gate unless it
-changes.
+Current real-runtime findings no longer show any audio content issues. The
+audio validator is now expected to pass cleanly on the current runtime.
 
 Built-in CI: