chore(turbo): the showcase test task hashes the tier switch it now reads

Claude-Session: https://claude.ai/code/session_01ADHkmTHHuvZqTM7XKWfv8Q
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

turbo.json

@@ -460,7 +460,9 @@
         "!coverage/**",
         "!.turbo/**",
         "$TURBO_ROOT$/scripts/js-comment-mask.mjs",
-        "$TURBO_ROOT$/scripts/js-comment-mask.d.mts"
+        "$TURBO_ROOT$/scripts/js-comment-mask.d.mts",
+        "$TURBO_ROOT$/scripts/nightly-tiers.mjs",
+        "$TURBO_ROOT$/scripts/nightly-tiers.d.mts"
       ]
     },
     "@objectstack/plugin-auth#test": {