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>

pkg/dht/dht.go

@@ -17,7 +17,7 @@ import (
 	"crypto/sha256"
 )
 
-// LibP2PDHT provides distributed hash table functionality for BZZZ peer discovery
+// LibP2PDHT provides distributed hash table functionality for CHORUS peer discovery
 type LibP2PDHT struct {
 	host   host.Host
 	kdht   *dht.IpfsDHT
@@ -42,7 +42,7 @@ type Config struct {
 	// Bootstrap nodes for initial DHT discovery
 	BootstrapPeers []multiaddr.Multiaddr
 	
-	// Protocol prefix for BZZZ DHT
+	// Protocol prefix for CHORUS DHT
 	ProtocolPrefix string
 	
 	// Bootstrap timeout
@@ -71,7 +71,7 @@ type PeerInfo struct {
 // DefaultConfig returns a default DHT configuration
 func DefaultConfig() *Config {
 	return &Config{
-		ProtocolPrefix:    "/bzzz",
+		ProtocolPrefix:    "/CHORUS",
 		BootstrapTimeout:  30 * time.Second,
 		DiscoveryInterval: 60 * time.Second,
 		Mode:             dht.ModeAuto,
@@ -373,7 +373,7 @@ func (d *LibP2PDHT) FindPeersByRole(ctx context.Context, role string) ([]*PeerIn
 	d.peersMutex.RUnlock()
 	
 	// Also search DHT for role-based keys
-	roleKey := fmt.Sprintf("bzzz:role:%s", role)
+	roleKey := fmt.Sprintf("CHORUS:role:%s", role)
 	providers, err := d.FindProviders(ctx, roleKey, 10)
 	if err != nil {
 		// Return local peers even if DHT search fails
@@ -408,13 +408,13 @@ func (d *LibP2PDHT) FindPeersByRole(ctx context.Context, role string) ([]*PeerIn
 
 // AnnounceRole announces this peer's role to the DHT
 func (d *LibP2PDHT) AnnounceRole(ctx context.Context, role string) error {
-	roleKey := fmt.Sprintf("bzzz:role:%s", role)
+	roleKey := fmt.Sprintf("CHORUS:role:%s", role)
 	return d.Provide(ctx, roleKey)
 }
 
 // AnnounceCapability announces a capability to the DHT
 func (d *LibP2PDHT) AnnounceCapability(ctx context.Context, capability string) error {
-	capKey := fmt.Sprintf("bzzz:capability:%s", capability)
+	capKey := fmt.Sprintf("CHORUS:capability:%s", capability)
 	return d.Provide(ctx, capKey)
 }
 
@@ -474,8 +474,8 @@ func (d *LibP2PDHT) performDiscovery() {
 	ctx, cancel := context.WithTimeout(d.ctx, 30*time.Second)
 	defer cancel()
 	
-	// Look for general BZZZ peers
-	providers, err := d.FindProviders(ctx, "bzzz:peer", 10)
+	// Look for general CHORUS peers
+	providers, err := d.FindProviders(ctx, "CHORUS:peer", 10)
 	if err != nil {
 		return
 	}