feat(tasks,savings,cashier): facility charge mapping screen, chained approve+activate, popup diff dialog, cash/transfer-only teller flow

Adds a Products > Facility Charge Mappings screen so each of the 16 facility
toggles can be pointed at a real charge, backing the mapped-charge validation
added on the backend. Bulk-approve on the pending accounts screen now chains
straight into activation (matching the single-account approve flow) instead
of leaving accounts sitting in Approved; the same screen's Confirm button no
longer stays disabled on pre-filled but untouched dialogs. Add Charge is
hidden on not-yet-active savings accounts, and Transfer Funds is disabled
entirely pending a proper transfer flow. The pending savings-account edit
"Proposed Changes" panel is now a MatDialog showing only the fields that
actually changed, replacing the old always-open inline diff table. The teller
transaction-entry Payment Type dropdown is filtered to Cash/Transfer only,
mirroring the backend's retirement of the other system-defined payment types
so share withdrawal and GL transfers now settle the same way real transfers
do.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/environments/.env.ts

@@ -10,7 +10,7 @@
 export default {
   'mifos_x': {
     'version': '260827',
-    'hash': '1273bdbe'
+    'hash': '79ffde51'
   },
   'allow_switching_backend_instance': true
 };