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/health/integration_example.go

@@ -6,7 +6,7 @@ import (
 	"net/http"
 	"time"
 
-	"chorus.services/bzzz/pkg/shutdown"
+	"chorus/pkg/shutdown"
 )
 
 // IntegrationExample demonstrates how to integrate health monitoring and graceful shutdown
@@ -75,7 +75,7 @@ func setupHealthChecks(healthManager *Manager) {
 	healthManager.RegisterCheck(memoryCheck)
 
 	// Disk space check (warning only)
-	diskCheck := CreateDiskSpaceCheck("/var/lib/bzzz", 0.90) // Alert if > 90%
+	diskCheck := CreateDiskSpaceCheck("/var/lib/CHORUS", 0.90) // Alert if > 90%
 	healthManager.RegisterCheck(diskCheck)
 
 	// Custom application-specific health check