feat: Hardcode default bootnode address

If --bootstrap is not specified, automatically connect to:
/dns4/bootnode.platform.network/tcp/9000/p2p/12D3KooWEpZoR9A1fpMN4QGspuRSa9UYHYvnFda2GWkXXZyYgAkN

This simplifies deployment - validators connect to the network automatically.

Author: EchoBT

bins/validator-node/src/main.rs

@@ -705,15 +705,21 @@ async fn main() -> Result<()> {
     ));
     consensus.sync_validators();
 
-    // Parse bootstrap peers
+    // Parse bootstrap peers (default to official bootnode if not specified)
+    const DEFAULT_BOOTNODE: &str = "/dns4/bootnode.platform.network/tcp/9000/p2p/12D3KooWEpZoR9A1fpMN4QGspuRSa9UYHYvnFda2GWkXXZyYgAkN";
     let bootstrap_peers: Vec<_> = args
         .bootstrap
         .map(|s| {
             s.split(',')
                 .filter_map(|addr| addr.trim().parse().ok())
                 .collect()
         })
-        .unwrap_or_default();
+        .unwrap_or_else(|| {
+            // Use default bootnode
+            vec![DEFAULT_BOOTNODE
+                .parse()
+                .expect("Invalid default bootnode address")]
+        });
 
     // Create network node with deterministic peer ID derived from hotkey public key
     let node_config = NodeConfig {

docker-compose.yml

@@ -27,12 +27,8 @@ services:
       - DATA_DIR=/data
       - VALIDATOR_SECRET_KEY=${VALIDATOR_SECRET_KEY}
 
-    command:
-      - validator-node
-      - --data-dir
-      - /data
-      - --bootstrap-peer
-      - /dns4/bootnode.platform.network/tcp/9000/p2p/12D3KooWEpZoR9A1fpMN4QGspuRSa9UYHYvnFda2GWkXXZyYgAkN
+    # Bootstrap peer is hardcoded in the binary (bootnode.platform.network)
+    # Override with: --bootstrap /dns4/other-node/tcp/9000/p2p/<PEER_ID>
 
     healthcheck:
       test: ["CMD", "curl", "-sf", "http://localhost:8080/health"]