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_status.py

@@ -0,0 +1,25 @@
+with open("/home/oib/windsurf/aitbc/cli/aitbc_cli/commands/blockchain.py", "r") as f:
+    content = f.read()
+
+# Fix the node status endpoints to reflect the new architecture
+# Node 1 on container is at localhost:8082 but the endpoint is /rpc/head or /health, and it expects a chain_id.
+# Let's hit the health endpoint instead for status.
+content = content.replace(
+    """    try:
+        with httpx.Client() as client:
+            response = client.get(
+                f"{rpc_url}/head",
+                timeout=5
+            )""",
+    """    try:
+        with httpx.Client() as client:
+            # First get health for general status
+            health_url = rpc_url.replace("/rpc", "") + "/health" if "/rpc" in rpc_url else rpc_url + "/health"
+            response = client.get(
+                health_url,
+                timeout=5
+            )"""
+)
+
+with open("/home/oib/windsurf/aitbc/cli/aitbc_cli/commands/blockchain.py", "w") as f:
+    f.write(content)