feat(dds): DDS product creation in tabs with an Accounting tab

- DDS Product Creation split into Details / Interest & Maturity /
  Premature Closure / Accounting tabs, like the savings product
- Accounting tab picks Customer Deposits (liability), Interest Expense
  and Agent Commission Expense (expense) GLs; product view shows them
- Approval review shows the product's GLs, old -> new on edits
- Agent master no longer reads the removed dds-deposit-product setting

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/organization/agent-master/create-agent/create-agent.component.ts

@@ -25,7 +25,6 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
 /** Custom Services */
 import { OrganizationService } from 'app/organization/organization.service';
 import { AccountingService } from 'app/accounting/accounting.service';
-import { SystemService } from 'app/system/system.service';
 import { ClientsService } from 'app/clients/clients.service';
 import { SavingsService } from 'app/savings/savings.service';
 import { SettingsService } from 'app/settings/settings.service';
@@ -90,7 +89,6 @@ export class CreateAgentComponent implements OnInit {
   private clientsService = inject(ClientsService);
   private savingsService = inject(SavingsService);
   private accountingService = inject(AccountingService);
-  private systemService = inject(SystemService);
   private settingsService = inject(SettingsService);
   private dateUtils = inject(Dates);
   private alertService = inject(AlertService);
@@ -286,17 +284,6 @@ export class CreateAgentComponent implements OnInit {
     );
   }
 
-  /**
-   * The savings product a DDS customer's own scheme account is opened under, read from the setting
-   * that names it rather than guessed from a product name a bank is free to change.
-   *
-   * Held so those accounts can be kept out of the agent's own list. They are savings accounts and
-   * pass every other test, but they belong to a customer's scheme: commission paid into one would be
-   * counted as that customer's deposits by every interest run afterwards. The server refuses it
-   * either way - this is so the choice is never offered rather than taken and then thrown back.
-   */
-  private ddsProductId: number | null = null;
-
   /**
    * The accounts on offer once a type has been chosen. Type is asked first, as the legacy screen
    * did, so the officer narrows to a kind of account and then picks one of that kind.
@@ -420,19 +407,6 @@ export class CreateAgentComponent implements OnInit {
       error: () => (this.offices = [])
     });
 
-    this.systemService.getConfigurationByName('dds-deposit-product').subscribe({
-      next: (config: any) => {
-        this.ddsProductId = config?.enabled && config?.value ? Number(config.value) : null;
-        // The client may already have been keyed while this was in flight, so the list is rebuilt
-        // rather than left showing an account this now knows to exclude.
-        const clientId = this.agentForm.get('clientId')?.value;
-        if (clientId) {
-          this.loadClientSavingsAccounts(String(clientId));
-        }
-      },
-      error: () => (this.ddsProductId = null)
-    });
-
     this.accountingService.getChartOfAccounts().subscribe({
       next: (accounts: any) => {
         const rows = Array.isArray(accounts) ? accounts : accounts?.pageItems || [];
@@ -751,11 +725,8 @@ export class CreateAgentComponent implements OnInit {
             // Savings only. Commission is credited whenever a run posts, and a fixed deposit is a
             // single sum placed for a term while a recurring one takes only its own instalments -
             // neither accepts the credit, so the posting would fail rather than the choice.
-            // A DDS scheme account is a savings account too and so passes the test above. It is
-            // dropped by the product the setting names - not by a product called "DDS", which is a
-            // name the bank may change - so the list offers only accounts the agent can be paid in.
+            // A DDS customer's scheme account would pass this too; the server refuses one on save.
             account.depositType?.id === CreateAgentComponent.SAVINGS_DEPOSIT_TYPE &&
-            (this.ddsProductId === null || account.productId !== this.ddsProductId) &&
             (account.status?.active || account.status?.submittedAndPendingApproval || account.status?.approved)
         );
         this.savingsAccountTypes = [