feat(clerk): block clerk cash deposits with UI banner and save guard

Clerk cash deposits are not permitted — notes/coins denomination is
cashier vault responsibility. Shows warning banner above footer and
disables Save button when clerk selects cash payment type on a deposit.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/environments/.env.ts

@@ -9,8 +9,8 @@
 /* tslint:disable */
 export default {
   'mifos_x': {
-    'version': '260609',
-    'hash': 'f7d9259e'
+    'version': '260615',
+    'hash': 'e5d6cd32'
   },
   'allow_switching_backend_instance': true
 };