fix: tenant-config fixes, cashier/share/savings UI bugs, and menu-access hardcoding

- Add Balance Sheet report and disabled-features accounting config
- Point menu-access tenant header and env.js/environment.ts tenant identifier
  at env config instead of hardcoded 'default'/'lincpay' literals
- Surface the real backend error (not a generic "no reference id") when an
  OTP send fails in contact-otp-block
- Fix branch-day "₹null" display bug (null vs undefined) and add a guard
  blocking a branch's first-ever day open before cash denomination migration
- Dynamically size the denomination count input and block re-opening an
  already-open business day from Migrate Cash Denomination
- Lock the denomination-managed cash GL row in Migrate Opening Balances
  (read-only, with a link back to Migrate Cash Denomination)
- Remove duplicate Cancel/Submit action bars on the Share Product and
  Savings Account creation preview steps; align Previous into the same row
- Hide "Apply Collection" on a share account once its advance collection
  is already settled (further purchases go through Apply Additional Shares)

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

src/app/accounting/migrate-cash-denomination/migrate-cash-denomination.component.scss

@@ -115,6 +115,10 @@
     color: #64748b;
     line-height: 1.4;
   }
+
+  button {
+    margin-top: 10px;
+  }
 }
 
 .mcd-grid {
@@ -171,7 +175,11 @@
   }
 
   &__input {
-    width: 48px;
+    /* Width is set inline per row (see countInputWidthCh()), growing with the digit count typed —
+       min-width here only covers the fallback before Angular has bound anything. */
+    min-width: 48px;
+    max-width: 96px;
+    transition: width 0.1s ease-out;
     text-align: center;
     font-variant-numeric: tabular-nums;
     border: 1px solid #e2e8f0;