Add pagination to ISAC registries

docs/DESIGN_SYSTEM.md

@@ -239,3 +239,20 @@ creating a new record keeps the editor open with a fresh blank definition for
 rapid consecutive entry. Failed validation leaves the current editor and
 entered values intact. Use a unique action result token so reactive handling
 runs exactly once and does not create update loops.
+
+Tiered-definition registries should show their rendered tier effects when the
+text is operationally useful. Use compact wrapping description cells rather
+than replacing meaningful data with a generic “configured” label; retain an
+explicit textual missing state when a tier has no rendered description.
+
+### Registry pagination
+
+Every primary ISAC registry uses server-side pagination. The shared control
+appears immediately above and visually attached to its table. It shows the
+visible record range and total, previous/next navigation, a compact
+window of page numbers, and row-count presets of 10, 25, 50, and 100. Existing
+filter query parameters must survive page navigation, while changing page size
+returns to page one. Summary metrics remain global or filter-global and must
+never silently describe only the visible page. On narrow screens, retain
+previous, next, current page, and page-size controls before optional page
+numbers.