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/search-journal-entry/search-journal-entry.component.html

@@ -53,10 +53,13 @@
         <fa-icon icon="sync" [class.fa-spin]="ledgerLoading"></fa-icon>
         Refresh
       </button>
-      <button class="gl-hero-btn gl-hero-btn--primary" [routerLink]="['/accounting/journal-entries/create']">
-        <fa-icon icon="plus"></fa-icon>
-        New Entry
-      </button>
+      <!-- New Entry — hidden while Create Journal Entries is disabled, see disabled-features.ts -->
+      @if (!disabledFeatures.createJournalEntries) {
+        <button class="gl-hero-btn gl-hero-btn--primary" [routerLink]="['/accounting/journal-entries/create']">
+          <fa-icon icon="plus"></fa-icon>
+          New Entry
+        </button>
+      }
     </div>
   </div>
 </div>