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/p2p/host/autonat/interface.go

@@ -0,0 +1,31 @@
+package autonat
+
+import (
+	"context"
+	"io"
+
+	"github.com/libp2p/go-libp2p/core/network"
+	"github.com/libp2p/go-libp2p/core/peer"
+
+	ma "github.com/multiformats/go-multiaddr"
+)
+
+// AutoNAT is the interface for NAT autodiscovery
+type AutoNAT interface {
+	// Status returns the current NAT status
+	Status() network.Reachability
+	io.Closer
+}
+
+// Client is a stateless client interface to AutoNAT peers
+type Client interface {
+	// DialBack requests from a peer providing AutoNAT services to test dial back
+	// and report the address on a successful connection.
+	DialBack(ctx context.Context, p peer.ID) error
+}
+
+// AddrFunc is a function returning the candidate addresses for the local host.
+type AddrFunc func() []ma.Multiaddr
+
+// Option is an Autonat option for configuration
+type Option func(*config) error