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/pb/rpc.proto

@@ -0,0 +1,57 @@
+syntax = "proto2";
+
+package pubsub.pb;
+
+message RPC {
+	repeated SubOpts subscriptions = 1;
+	repeated Message publish = 2;
+
+	message SubOpts {
+		optional bool subscribe = 1; // subscribe or unsubcribe
+		optional string topicid = 2;
+	}
+
+	optional ControlMessage control = 3;
+}
+
+message Message {
+	optional bytes from = 1;
+	optional bytes data = 2;
+	optional bytes seqno = 3;
+	optional string topic = 4;
+	optional bytes signature = 5;
+	optional bytes key = 6;
+}
+
+message ControlMessage {
+	repeated ControlIHave ihave = 1;
+	repeated ControlIWant iwant = 2;
+	repeated ControlGraft graft = 3;
+	repeated ControlPrune prune = 4;
+}
+
+message ControlIHave {
+	optional string topicID = 1;
+	// implementors from other languages should use bytes here - go protobuf emits invalid utf8 strings
+	repeated string messageIDs = 2;
+}
+
+message ControlIWant {
+	// implementors from other languages should use bytes here - go protobuf emits invalid utf8 strings
+	repeated string messageIDs = 1;
+}
+
+message ControlGraft {
+	optional string topicID = 1;
+}
+
+message ControlPrune {
+	optional string topicID = 1;
+	repeated PeerInfo peers = 2;
+	optional uint64 backoff = 3;
+}
+
+message PeerInfo {
+	optional bytes peerID = 1;
+	optional bytes signedPeerRecord = 2;
+}