feat: add local RPC management script

- Add manage-local-rpc.sh utility script for Solana test validator management
- Support start, stop, status, and logs commands
- Include health checks and user-friendly status messages
- Provide RPC and WebSocket URLs for easy connection

Author: 0xrinegade

manage-local-rpc.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# Script to manage local Solana RPC node
+
+case "$1" in
+    start)
+        if pgrep -f "solana-test-validator" > /dev/null; then
+            echo "❌ Solana test validator is already running"
+            exit 1
+        fi
+        echo "🚀 Starting Solana test validator..."
+        nohup solana-test-validator --reset > /tmp/solana-test-validator.log 2>&1 &
+        echo "✅ Started with PID: $!"
+        echo "📍 RPC URL: http://127.0.0.1:8899"
+        echo "🔌 WebSocket URL: ws://127.0.0.1:8900"
+        echo "📄 Log file: /tmp/solana-test-validator.log"
+        ;;
+    stop)
+        echo "🛑 Stopping Solana test validator..."
+        pkill -f solana-test-validator
+        echo "✅ Stopped"
+        ;;
+    status)
+        if pgrep -f "solana-test-validator" > /dev/null; then
+            echo "✅ Solana test validator is running"
+            echo "📍 RPC URL: http://127.0.0.1:8899"
+            echo "🔌 WebSocket URL: ws://127.0.0.1:8900"
+            # Check health
+            if curl -s -X POST -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","id":1,"method":"getHealth"}' http://127.0.0.1:8899 | grep -q '"result":"ok"'; then
+                echo "💚 Health: OK"
+            else
+                echo "❌ Health: Not responding"
+            fi
+        else
+            echo "❌ Solana test validator is not running"
+        fi
+        ;;
+    logs)
+        if [ -f /tmp/solana-test-validator.log ]; then
+            tail -f /tmp/solana-test-validator.log
+        else
+            echo "❌ No log file found"
+        fi
+        ;;
+    *)
+        echo "Usage: $0 {start|stop|status|logs}"
+        exit 1
+        ;;
+esac