Integrate BACKBEAT SDK and resolve KACHING license validation

Major integrations and fixes:
- Added BACKBEAT SDK integration for P2P operation timing
- Implemented beat-aware status tracking for distributed operations
- Added Docker secrets support for secure license management
- Resolved KACHING license validation via HTTPS/TLS
- Updated docker-compose configuration for clean stack deployment
- Disabled rollback policies to prevent deployment failures
- Added license credential storage (CHORUS-DEV-MULTI-001)

Technical improvements:
- BACKBEAT P2P operation tracking with phase management
- Enhanced configuration system with file-based secrets
- Improved error handling for license validation
- Clean separation of KACHING and CHORUS deployment stacks

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

vendor/github.com/libp2p/go-libp2p-pubsub/notify.go

@@ -0,0 +1,75 @@
+package pubsub
+
+import (
+	"github.com/libp2p/go-libp2p/core/network"
+	"github.com/libp2p/go-libp2p/core/peer"
+	ma "github.com/multiformats/go-multiaddr"
+)
+
+var _ network.Notifiee = (*PubSubNotif)(nil)
+
+type PubSubNotif PubSub
+
+func (p *PubSubNotif) OpenedStream(n network.Network, s network.Stream) {
+}
+
+func (p *PubSubNotif) ClosedStream(n network.Network, s network.Stream) {
+}
+
+func (p *PubSubNotif) Connected(n network.Network, c network.Conn) {
+	// ignore transient connections
+	if c.Stat().Transient {
+		return
+	}
+
+	go func() {
+		p.newPeersPrioLk.RLock()
+		p.newPeersMx.Lock()
+		p.newPeersPend[c.RemotePeer()] = struct{}{}
+		p.newPeersMx.Unlock()
+		p.newPeersPrioLk.RUnlock()
+
+		select {
+		case p.newPeers <- struct{}{}:
+		default:
+		}
+	}()
+}
+
+func (p *PubSubNotif) Disconnected(n network.Network, c network.Conn) {
+}
+
+func (p *PubSubNotif) Listen(n network.Network, _ ma.Multiaddr) {
+}
+
+func (p *PubSubNotif) ListenClose(n network.Network, _ ma.Multiaddr) {
+}
+
+func (p *PubSubNotif) Initialize() {
+	isTransient := func(pid peer.ID) bool {
+		for _, c := range p.host.Network().ConnsToPeer(pid) {
+			if !c.Stat().Transient {
+				return false
+			}
+		}
+
+		return true
+	}
+
+	p.newPeersPrioLk.RLock()
+	p.newPeersMx.Lock()
+	for _, pid := range p.host.Network().Peers() {
+		if isTransient(pid) {
+			continue
+		}
+
+		p.newPeersPend[pid] = struct{}{}
+	}
+	p.newPeersMx.Unlock()
+	p.newPeersPrioLk.RUnlock()
+
+	select {
+	case p.newPeers <- struct{}{}:
+	default:
+	}
+}