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/ipfs/boxo/util/time.go

@@ -0,0 +1,22 @@
+package util
+
+import "time"
+
+// TimeFormatIpfs is the format ipfs uses to represent time in string form.
+var TimeFormatIpfs = time.RFC3339Nano
+
+// ParseRFC3339 parses an RFC3339Nano-formatted time stamp and
+// returns the UTC time.
+func ParseRFC3339(s string) (time.Time, error) {
+	t, err := time.Parse(TimeFormatIpfs, s)
+	if err != nil {
+		return time.Time{}, err
+	}
+	return t.UTC(), nil
+}
+
+// FormatRFC3339 returns the string representation of the
+// UTC value of the given time in RFC3339Nano format.
+func FormatRFC3339(t time.Time) string {
+	return t.UTC().Format(TimeFormatIpfs)
+}