feat(visualizer): update chart flow and DLOB docs

.gitignore

@@ -4,11 +4,20 @@ tokens/*
 !tokens/*.example.yml
 !tokens/*.example.yaml
 
+# Local secrets (never commit)
+pass/
+argo/pass
+
 node_modules/
 dist/
 .env
 *.log
 
+# Baremetal IaC local overlays (do not commit)
+infra/baremetal-solana-rpc/ansible/inventory/hosts.ini
+infra/baremetal-solana-rpc/ansible/group_vars/solana_rpc.yml
+infra/baremetal-solana-rpc/ansible/group_vars/vault.yml
+
 # Local scratch / build output
 _tmp/
 apps/visualizer/dist/