Initial commit: Beta testnet configuration

- Chainspec file (5.2MB) with genesis hash 0xa017...54b1
- Validator startup scripts for Computer 2 (validators 5-8)
- Complete setup instructions in README
- Configuration for 8-validator beta testnet

scripts/README.txt

@@ -0,0 +1,21 @@
+Beta Testnet Setup - Computer 2 (Validators 5-8)
+================================================
+
+BOOTNODE ADDRESS:
+/ip4/172.31.134.70/tcp/30333/p2p/12D3KooWLdhYkAXWWR7fFSWhMmBFgHVTf78ZWaWf2BpJxzJbTqCU
+
+QUICK START:
+1. Copy this entire computer2 folder to Computer 2
+2. Run: python3 generate-key-insertion-computer2.py /path/to/beta_testnet_validators_WITH_SEEDS_BACKUP.json
+3. Run: ./start-all-validators-computer2.sh
+4. Run: ./insert-keys-computer2.sh
+5. Restart validators for keys to take effect
+
+VALIDATORS:
+- Validator 5: Port 30337 (P2P), 9948 (RPC)
+- Validator 6: Port 30338 (P2P), 9949 (RPC)
+- Validator 7: Port 30339 (P2P), 9950 (RPC)
+- Validator 8: Port 30340 (P2P), 9951 (RPC)
+
+CHECK LOGS:
+tail -f /tmp/beta-validator-5.log