feat: Goa GEL Blockchain e-Licensing Platform - Full Stack Implementation

Complete implementation of the Goa Government e-Licensing platform with:

Backend:
- NestJS API with JWT authentication
- PostgreSQL database with Knex ORM
- Redis caching and session management
- MinIO document storage
- Hyperledger Besu blockchain integration
- Multi-department workflow system
- Comprehensive API tests (266/282 passing)

Frontend:
- Angular 21 with standalone components
- Angular Material + TailwindCSS UI
- Visual workflow builder
- Document upload with progress tracking
- Blockchain explorer integration
- Role-based dashboards (Admin, Department, Citizen)
- E2E tests with Playwright (37 tests)

Infrastructure:
- Docker Compose orchestration
- Blockscout blockchain explorer
- Development and production configurations

backend/src/common/utils/pagination.util.ts

@@ -0,0 +1,25 @@
+import { QueryBuilder } from 'objection';
+
+export interface PaginatedResult<T> {
+  results: T[];
+  total: number;
+}
+
+export interface PaginationOptions {
+  page: number;
+  limit: number;
+}
+
+export async function paginate<T>(
+  query: QueryBuilder<any, T[]>,
+  page: number,
+  limit: number,
+): Promise<PaginatedResult<T>> {
+  const p = page > 0 ? page - 1 : 0;
+  const l = limit > 0 ? limit : 10;
+
+  const { results, total } = await query.page(p, l);
+  return { results, total };
+}
+
+export { QueryBuilder };