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-record/util.go

@@ -0,0 +1,22 @@
+package record
+
+import (
+	"strings"
+)
+
+// SplitKey takes a key in the form `/$namespace/$path` and splits it into
+// `$namespace` and `$path`.
+func SplitKey(key string) (string, string, error) {
+	if len(key) == 0 || key[0] != '/' {
+		return "", "", ErrInvalidRecordType
+	}
+
+	key = key[1:]
+
+	i := strings.IndexByte(key, '/')
+	if i <= 0 {
+		return "", "", ErrInvalidRecordType
+	}
+
+	return key[:i], key[i+1:], nil
+}