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

blockchain/hardhat.config.ts

@@ -0,0 +1,54 @@
+import { HardhatUserConfig } from 'hardhat/config';
+import '@nomicfoundation/hardhat-toolbox';
+import * as dotenv from 'dotenv';
+
+dotenv.config();
+
+const PRIVATE_KEY = process.env.DEPLOYER_PRIVATE_KEY || '0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80';
+
+const config: HardhatUserConfig = {
+  solidity: {
+    version: '0.8.20',
+    settings: {
+      optimizer: {
+        enabled: true,
+        runs: 200,
+      },
+    },
+  },
+  networks: {
+    hardhat: {
+      chainId: 1337,
+    },
+    localhost: {
+      url: 'http://127.0.0.1:8545',
+      chainId: 1337,
+    },
+    besu: {
+      url: process.env.BESU_RPC_URL || 'http://localhost:8545',
+      chainId: 1337,
+      accounts: [PRIVATE_KEY],
+      gasPrice: 0,
+    },
+    besu_node1: {
+      url: 'http://localhost:8545',
+      chainId: 1337,
+      accounts: [PRIVATE_KEY],
+      gasPrice: 0,
+    },
+    besu_node2: {
+      url: 'http://localhost:8546',
+      chainId: 1337,
+      accounts: [PRIVATE_KEY],
+      gasPrice: 0,
+    },
+  },
+  paths: {
+    sources: './contracts',
+    tests: './test',
+    cache: './cache',
+    artifacts: './artifacts',
+  },
+};
+
+export default config;