docs(agents): a test file that declares a measured budget with its class is held to that budget, not the 10 s line

Claude-Session: https://claude.ai/code/session_01ESFcvW3staenyBCGq7kcDH
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

AGENTS.md

@@ -126,7 +126,8 @@ pays its first load at module top; `pnpm check:test-source-alias` gates it. A ga
 duration reports and ⛔ never reds a required job, judges only on the run profile it measured,
 and when new soaks report-only a week before it grades; any seat flips a gate that reds untouched
 packages twice in an hour to report-only before any ruling. A suite-weight ceiling rises only by
-ruling (`RULED_CEILING_RAISES`); a test file over 10 s of wall is its lane's card, fixed and ⛔
+ruling (`RULED_CEILING_RAISES`); a test file over 10 s of wall, unless the file declares a
+measured budget with its class (ruling record 6181973363), is its lane's card, fixed and ⛔
 never deleted; a test is deleted only when its PR names a duplicate pinning that assertion at a
 layer at least as close to the code (ruling record 6120820653).