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_send.py

@@ -0,0 +1,49 @@
+import re
+
+with open("/home/oib/windsurf/aitbc/cli/aitbc_cli/commands/blockchain.py", "r") as f:
+    content = f.read()
+
+new_commands = """
+@blockchain.command()
+@click.option('--chain-id', required=True, help='Chain ID')
+@click.option('--from', 'from_addr', required=True, help='Sender address')
+@click.option('--to', required=True, help='Recipient address')
+@click.option('--data', required=True, help='Transaction data payload')
+@click.option('--nonce', type=int, default=0, help='Nonce')
+@click.pass_context
+def send(ctx, chain_id, from_addr, to, data, nonce):
+    \"\"\"Send a transaction to a chain\"\"\"
+    config = ctx.obj['config']
+    try:
+        import httpx
+        with httpx.Client() as client:
+            tx_payload = {
+                "type": "TRANSFER",
+                "chain_id": chain_id,
+                "from_address": from_addr,
+                "to_address": to,
+                "value": 0,
+                "gas_limit": 100000,
+                "gas_price": 1,
+                "nonce": nonce,
+                "data": data,
+                "signature": "mock_signature"
+            }
+            
+            response = client.post(
+                f"http://127.0.0.1:8082/rpc/sendTx",
+                json=tx_payload,
+                timeout=5
+            )
+            if response.status_code in (200, 201):
+                output(response.json(), ctx.obj['output_format'])
+            else:
+                error(f"Failed to send transaction: {response.status_code} - {response.text}")
+    except Exception as e:
+        error(f"Network error: {e}")
+"""
+
+content = content + "\n" + new_commands
+
+with open("/home/oib/windsurf/aitbc/cli/aitbc_cli/commands/blockchain.py", "w") as f:
+    f.write(content)