Unify table-management canon and aqua icon system

kit/patterns/operator-tools/contract.md

@@ -1,5 +1,12 @@
 # Contract: Operator Tools Dashboard
 
+## Shared Base
+
+- This pattern inherits the shared `table-management` contract:
+  `kit/patterns/table-management/contract.md`.
+- Reuse shared toolbar/table/icon geometry from the base contract first, then define only
+  operator-specific behavior.
+
 ## Purpose
 
 Provide a canonical structure for high-density operator/admin screens without encoding