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/docker/besu/config.toml

@@ -0,0 +1,50 @@
+[Node]
+data-path="/var/lib/besu"
+p2p-port=30303
+p2p-host="0.0.0.0"
+rpc-http-enabled=true
+rpc-http-host="0.0.0.0"
+rpc-http-port=8545
+rpc-http-api=["ETH", "NET", "WEB3", "ADMIN", "QBFT"]
+rpc-http-cors-origins=["http://localhost:3000", "http://localhost:3001", "http://localhost:8080"]
+rpc-ws-enabled=true
+rpc-ws-host="0.0.0.0"
+rpc-ws-port=8546
+rpc-ws-api=["ETH", "NET", "WEB3", "ADMIN", "QBFT"]
+graphql-http-enabled=false
+sync-mode="FAST"
+pruning-enabled=true
+pruning-blocks-retained=1024
+block-gas-limit=6000000
+max-peers=30
+max-inbound-connections=10
+max-outbound-connections=20
+min-block-fill-percentage=80
+miner-enabled=false
+discovery-enabled=true
+discovery-dns-url="enrtree://AKA3AM_xupxQufGBg7EspalDjrWT0RD94jj_qc52cpgfUmu@nodes.goa-gel.gov.in"
+logging="INFO"
+host-allowlist=["localhost", "127.0.0.1", "besu-validator-1", "besu-validator-2", "besu-validator-3", "besu-validator-4"]
+
+[Network]
+bootnodes=[
+  "enode://9723eb17ebf1d4d00aba7d9c1bf7b9e5ceae8e4f4cf9f9a6e8f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f@besu-validator-1:30303",
+  "enode://2711dc881909b83b5ec4009e8815ebdcf7eaea3c1f4cf9f9a6e8f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f@besu-validator-2:30303",
+  "enode://27c0ca7c79b26c325581434091beb595f38e8abc1f4cf9f9a6e8f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f@besu-validator-3:30303",
+  "enode://d96245571cac7631eac214ba82cbf90f1f1ea2811f4cf9f9a6e8f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f@besu-validator-4:30303"
+]
+
+[Consensus]
+consensus="qbft"
+
+[Metrics]
+metrics-enabled=true
+metrics-host="0.0.0.0"
+metrics-port=9545
+metrics-protocol="PROMETHEUS"
+
+[Privacy]
+privacy-enabled=false
+
+[Gas]
+target-gas-limit=6000000

backend/docker/besu/genesis.json

@@ -0,0 +1,45 @@
+{
+  "config": {
+    "chainId": 1337,
+    "homesteadBlock": 0,
+    "eip150Block": 0,
+    "eip155Block": 0,
+    "eip158Block": 0,
+    "byzantiumBlock": 0,
+    "constantinopleBlock": 0,
+    "petersburgBlock": 0,
+    "istanbulBlock": 0,
+    "muirGlacierBlock": 0,
+    "berlinBlock": 0,
+    "londonBlock": 0,
+    "arrowGlacierBlock": 0,
+    "grayGlacierBlock": 0,
+    "qbft": {
+      "blockperiodseconds": 2,
+      "epochlength": 30000,
+      "requesttimeoutseconds": 4,
+      "validaterroundrobintimeout": 0
+    }
+  },
+  "nonce": "0x0",
+  "timestamp": "0x58ee40ba",
+  "extraData": "0xf83ea00000000000000000000000000000000000000000000000000000000000000000d5949723eb17ebf1d4d00aba7d9c1bf7b9e5ceae8e4f4cf9f9a6e8f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f8e7f80c0",
+  "gasLimit": "0x47b760",
+  "difficulty": "0x1",
+  "mixHash": "0x63746963616c2062797a616e74696e652066617566742074six656c6572616e6365",
+  "coinbase": "0x0000000000000000000000000000000000000000",
+  "alloc": {
+    "9723eb17ebf1d4d00aba7d9c1bf7b9e5ceae8e4": {
+      "balance": "0x200000000000000000000000000000000000000000000000000000000000000"
+    },
+    "2711dc881909b83b5ec4009e8815ebdcf7eaea3c": {
+      "balance": "0x200000000000000000000000000000000000000000000000000000000000000"
+    },
+    "27c0ca7c79b26c325581434091beb595f38e8abc": {
+      "balance": "0x200000000000000000000000000000000000000000000000000000000000000"
+    },
+    "d96245571cac7631eac214ba82cbf90f1f1ea281": {
+      "balance": "0x200000000000000000000000000000000000000000000000000000000000000"
+    }
+  }
+}

backend/docker/besu/node-keys/validator-1/key

@@ -0,0 +1 @@
+9f02d7c45e9e3f1a8b7d6c5e4f3a2b1c9f02d7c45e9e3f1a8b7d6c5e4f3a2b

backend/docker/besu/node-keys/validator-2/key

@@ -0,0 +1 @@
+a1e8f2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9