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/gossipsub_feat.go

@@ -0,0 +1,52 @@
+package pubsub
+
+import (
+	"fmt"
+
+	"github.com/libp2p/go-libp2p/core/protocol"
+)
+
+// GossipSubFeatureTest is a feature test function; it takes a feature and a protocol ID and
+// should return true if the feature is supported by the protocol
+type GossipSubFeatureTest = func(GossipSubFeature, protocol.ID) bool
+
+// GossipSubFeature is a feature discriminant enum
+type GossipSubFeature int
+
+const (
+	// Protocol supports basic GossipSub Mesh -- gossipsub-v1.0 compatible
+	GossipSubFeatureMesh = iota
+	// Protocol supports Peer eXchange on prune -- gossipsub-v1.1 compatible
+	GossipSubFeaturePX
+)
+
+// GossipSubDefaultProtocols is the default gossipsub router protocol list
+var GossipSubDefaultProtocols = []protocol.ID{GossipSubID_v11, GossipSubID_v10, FloodSubID}
+
+// GossipSubDefaultFeatures is the feature test function for the default gossipsub protocols
+func GossipSubDefaultFeatures(feat GossipSubFeature, proto protocol.ID) bool {
+	switch feat {
+	case GossipSubFeatureMesh:
+		return proto == GossipSubID_v11 || proto == GossipSubID_v10
+	case GossipSubFeaturePX:
+		return proto == GossipSubID_v11
+	default:
+		return false
+	}
+}
+
+// WithGossipSubProtocols is a gossipsub router option that configures a custom protocol list
+// and feature test function
+func WithGossipSubProtocols(protos []protocol.ID, feature GossipSubFeatureTest) Option {
+	return func(ps *PubSub) error {
+		gs, ok := ps.rt.(*GossipSubRouter)
+		if !ok {
+			return fmt.Errorf("pubsub router is not gossipsub")
+		}
+
+		gs.protos = protos
+		gs.feature = feature
+
+		return nil
+	}
+}