Add unified strict audit workflow

AGENTS.md

@@ -110,6 +110,22 @@ When changing the primary compare page:
 - redeploy the HTML to `/mnt/sda1/www/newpec/navsea-compare-karatsu-20nm.html`
 - if the visual change depends on style updates, redeploy the corresponding style JSON too
 
+### 6. Prefer Unified Strict Audit For 20nm Visual Gate
+
+For the current 20nm visual baseline, prefer:
+
+- [`navsea_strict_audit.py`](/root/sourceserver/pbf/navsea_strict_audit.py)
+
+This script combines:
+
+- browser-rendered screenshot diff from the fixed compare page
+- backend render audit summary from the current 20nm audit JSON
+
+Use it when you need one report that explains both:
+
+- what the user really sees
+- what the backend render audit currently says
+
 ## Resume Checklist
 
 At the start of a session: