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

.env.example

@@ -0,0 +1,30 @@
+# Blockchain Smart Contract Addresses
+# These will be populated after deploying contracts
+CONTRACT_ADDRESS_LICENSE_NFT=
+CONTRACT_ADDRESS_APPROVAL_MANAGER=
+CONTRACT_ADDRESS_DEPARTMENT_REGISTRY=
+CONTRACT_ADDRESS_WORKFLOW_REGISTRY=
+
+# Platform Wallet Private Key
+# This will be generated during initial setup
+PLATFORM_WALLET_PRIVATE_KEY=
+
+# Database Configuration (optional overrides)
+# DATABASE_HOST=postgres
+# DATABASE_PORT=5432
+# DATABASE_NAME=goa_gel_platform
+# DATABASE_USER=postgres
+# DATABASE_PASSWORD=postgres_secure_password
+
+# Redis Configuration (optional overrides)
+# REDIS_HOST=redis
+# REDIS_PORT=6379
+
+# MinIO Configuration (optional overrides)
+# MINIO_ENDPOINT=minio
+# MINIO_PORT=9000
+# MINIO_ACCESS_KEY=minioadmin
+# MINIO_SECRET_KEY=minioadmin_secure
+
+# JWT Secret (change in production)
+# JWT_SECRET=your-super-secure-jwt-secret-key-min-32-chars-long