fix(ui): standardize compact operational headings and empty states

registry/components.json

@@ -441,6 +441,7 @@
       "summary": "Neutral administration group with title metadata, actions, content and a compact binary switch.",
       "rules": [
         "The card owns grouping geometry but not product form schemas.",
+        "Section and empty-state titles use the compact md token; descriptions use sm. Page/window title sizes and browser heading defaults are forbidden inside cards.",
         "Use Switch for compact visibility/enable states; use Checker for the Engine inspector treatment."
       ]
     },

registry/registry.json

@@ -44,6 +44,7 @@
     "architecture": "../docs/ARCHITECTURE.md",
     "components": "../docs/COMPONENTS.md",
     "theming": "../docs/THEMING.md",
+    "operationalTypography": "../docs/OPERATIONAL_TYPOGRAPHY.md",
     "windows": "../docs/WINDOWS_AND_LAYERS.md",
     "baseline": "../docs/SOURCE_BASELINE.md",
     "governance": "../docs/GOVERNANCE.md",