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/koron/go-ssdp/internal/ssdplog/ssdplog.go

@@ -0,0 +1,16 @@
+/*
+Package ssdplog provides log mechanism for ssdp.
+*/
+package ssdplog
+
+import "log"
+
+var LoggerProvider = func() *log.Logger { return nil }
+
+func Printf(s string, a ...interface{}) {
+	if p := LoggerProvider; p != nil {
+		if l := p(); l != nil {
+			l.Printf(s, a...)
+		}
+	}
+}