feat: implement cashier dashboard, dividend dashboards, share accounts views, and checker tasks

src/app/accounting/accounting.service.ts

@@ -44,6 +44,26 @@ export class AccountingService {
     return this.http.get('/accounting/profitandloss', { params: httpParams });
   }
 
+  /**
+   * How much profit a share dividend may actually be declared out of — net profit reduced by the
+   * statutory appropriations that legally precede a dividend (Statutory Reserve Fund, education
+   * fund) and by dividends already declared for other share products over an overlapping period.
+   * @param {string} fromDate Period start, yyyy-MM-dd.
+   * @param {string} toDate Period end, yyyy-MM-dd.
+   * @param {string} excludeProductId Leave this product's own declarations out of `alreadyDeclared`
+   *   (its overlapping declaration is separately blocked outright, so counting it would double up).
+   * @returns {Observable<any>} `{ netProfit, statutoryReserveAmount, educationFundAmount,
+   *   distributableProfit, alreadyDeclared, availableForDeclaration, maximumRatePercentage,
+   *   existingDeclarations[] }`.
+   */
+  getDistributableProfit(fromDate: string, toDate: string, excludeProductId?: string): Observable<any> {
+    let httpParams = new HttpParams().set('fromDate', fromDate).set('toDate', toDate);
+    if (excludeProductId) {
+      httpParams = httpParams.set('excludeProductId', excludeProductId);
+    }
+    return this.http.get('/accounting/distributable-profit', { params: httpParams });
+  }
+
   /**
    * Total share dividend actually paid to members in a date range — derived from the Dividend
    * Payable GL account's own ledger (no separate "Dividend Paid" account needed).