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-yamux/v4/ping.go

@@ -0,0 +1,34 @@
+package yamux
+
+import "time"
+
+type ping struct {
+	id uint32
+	// written to by the session on ping response
+	pingResponse chan struct{}
+
+	// closed by the Ping call that sent the ping when done.
+	done chan struct{}
+	// result set before done is closed.
+	err      error
+	duration time.Duration
+}
+
+func newPing(id uint32) *ping {
+	return &ping{
+		id:           id,
+		pingResponse: make(chan struct{}, 1),
+		done:         make(chan struct{}),
+	}
+}
+
+func (p *ping) finish(val time.Duration, err error) {
+	p.err = err
+	p.duration = val
+	close(p.done)
+}
+
+func (p *ping) wait() (time.Duration, error) {
+	<-p.done
+	return p.duration, p.err
+}