feat: dynamic denomination breakdown in deposit forms + savings menu scroller

Deposit forms (Current/Savings/FD/RD) now load cash denominations from
the Denomination Master instead of a hardcoded list:
- active + discontinued denominations fetched via /denominationmaster
- discontinued rows hidden by default behind a "Show discontinued" toggle,
  rendered faded and disabled (cannot be counted) when revealed
- rows sorted by value descending; redesigned as a Denom/Qty/Amount table
  with circular coin chips and per-row amount (faded at zero)
Also: savings account-actions menu now scrolls (max-height + grouped
sections mirror the current-account menu) and renders all action items.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/app/savings/savings-account-view/savings-account-view.component.ts

@@ -170,6 +170,14 @@ export class SavingsAccountViewComponent implements OnInit {
     return this.ACTION_ICON[name] ?? fallback ?? 'circle';
   }
 
+  hasKind(kind: 'transact' | 'block' | 'interest' | 'admin' | 'danger'): boolean {
+    const all = [
+      ...(this.buttonConfig?.singleButtons ?? []),
+      ...(this.buttonConfig?.options ?? [])
+    ];
+    return all.some((item) => this.kindOf(item.name) === kind);
+  }
+
   /**
    * Fetches savings account data from `resolve`
    * @param {ActivatedRoute} route Activated Route