feat(fd): add FD Dashboard -- maturity ladder + manual Renew action

New screen (Deposits menu, repurposing the dead "FD Maturity Report" shell button): every
active Fixed Deposit positioned against its own maturity date (Matured / Due Soon / Upcoming /
On Track), computed client-side from maturityDate so it can never drift out of step with the
account. Reads the new lean maturity-dashboard backend endpoint.

A matured, renewable row (no maturity instruction chosen at account-opening, or an explicit
Reinvest instruction still waiting on its product's grace period) gets a Renew action wired to
the account's own Payment dialog -- see the FD account-view commit for that side of it.

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

src/app/accounts/accounts.service.ts

@@ -74,6 +74,17 @@ export class AccountsService {
     return this.http.get('/fixeddepositaccounts', { params: httpParams });
   }
 
+  /**
+   * FD Dashboard's data source: every ACTIVE FD, id/account/client/product identity, maturity date
+   * and deposit/maturity amounts only. Deliberately a separate, narrow endpoint rather than
+   * getFixedDepositAccounts() above -- that one's backend query joins in six more tables (audit
+   * who-did-what-when, currency, tax group) an unbounded dashboard fetch does not need, over columns
+   * that had no index until this feature added one (see backend migration 0571).
+   */
+  getFixedDepositMaturityDashboard(): Observable<any> {
+    return this.http.get('/fixeddepositaccounts/maturity-dashboard');
+  }
+
   getRecurringDepositAccounts(params: AccountListParams = {}): Observable<any> {
     let httpParams = new HttpParams()
       .set('paged', 'true')