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_chain_info.py

@@ -0,0 +1,12 @@
+with open("/home/oib/windsurf/aitbc/cli/aitbc_cli/commands/chain.py", "r") as f:
+    content = f.read()
+
+# Fix asyncio.run for chain_info
+content = content.replace(
+    """        chain_info = chain_manager.get_chain_info(chain_id, detailed, metrics)""",
+    """        import asyncio
+        chain_info = asyncio.run(chain_manager.get_chain_info(chain_id, detailed, metrics))"""
+)
+
+with open("/home/oib/windsurf/aitbc/cli/aitbc_cli/commands/chain.py", "w") as f:
+    f.write(content)