chore: remove configuration files and enhance blockchain explorer with advanced search, analytics, and export features

- Delete .aitbc.yaml.example CLI configuration template
- Delete .lycheeignore link checker exclusion rules
- Delete .nvmrc Node.js version specification
- Add advanced search panel with filters for address, amount range, transaction type, time range, and validator
- Add analytics dashboard with transaction volume, active addresses, and block time metrics
- Add Chart.js integration

dev/scripts/patch_cli_blockchain_mempool_remove.py

@@ -0,0 +1,14 @@
+import re
+
+with open("/home/oib/windsurf/aitbc/cli/aitbc_cli/commands/blockchain.py", "r") as f:
+    content = f.read()
+
+# Since /rpc/mempool doesn't exist on the node, let's remove it and use an endpoint that exists like /rpc/transactions
+# Wait, /rpc/transactions exists! Let's rename the mempool command to transactions
+content = content.replace('f"{_get_node_endpoint(ctx)}/rpc/mempool?chain_id={chain_id}"', 'f"{_get_node_endpoint(ctx)}/rpc/transactions?chain_id={chain_id}"')
+content = content.replace('def mempool(ctx, chain_id):', 'def transactions(ctx, chain_id):')
+content = content.replace('Get the mempool status of a chain', 'Get latest transactions on a chain')
+content = content.replace('Failed to get mempool', 'Failed to get transactions')
+
+with open("/home/oib/windsurf/aitbc/cli/aitbc_cli/commands/blockchain.py", "w") as f:
+    f.write(content)