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/mikioh/tcpopt/sys_unix.go

@@ -0,0 +1,173 @@
+// Copyright 2016 Mikio Hara. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package tcpopt
+
+import (
+	"errors"
+	"time"
+	"unsafe"
+)
+
+// Marshal implements the Marshal method of Option interface.
+func (nd NoDelay) Marshal() ([]byte, error) {
+	v := boolint32(bool(nd))
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (mss MSS) Marshal() ([]byte, error) {
+	v := int32(mss)
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (sb SendBuffer) Marshal() ([]byte, error) {
+	v := int32(sb)
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (rb ReceiveBuffer) Marshal() ([]byte, error) {
+	v := int32(rb)
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (ka KeepAlive) Marshal() ([]byte, error) {
+	v := boolint32(bool(ka))
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (ka KeepAliveIdleInterval) Marshal() ([]byte, error) {
+	ka += KeepAliveIdleInterval(options[soKeepidle].uot - time.Nanosecond)
+	v := int32(time.Duration(ka) / options[soKeepidle].uot)
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (ka KeepAliveProbeInterval) Marshal() ([]byte, error) {
+	ka += KeepAliveProbeInterval(options[soKeepintvl].uot - time.Nanosecond)
+	v := int32(time.Duration(ka) / options[soKeepintvl].uot)
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (ka KeepAliveProbeCount) Marshal() ([]byte, error) {
+	v := int32(ka)
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (ck Cork) Marshal() ([]byte, error) {
+	v := boolint32(bool(ck))
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (ns NotSentLowWMK) Marshal() ([]byte, error) {
+	v := int32(ns)
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (e Error) Marshal() ([]byte, error) {
+	v := int32(e)
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+// Marshal implements the Marshal method of Option interface.
+func (cn ECN) Marshal() ([]byte, error) {
+	v := boolint32(bool(cn))
+	return (*[4]byte)(unsafe.Pointer(&v))[:], nil
+}
+
+func parseNoDelay(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return NoDelay(uint32bool(nativeEndian.Uint32(b))), nil
+}
+
+func parseMSS(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return MSS(nativeEndian.Uint32(b)), nil
+}
+
+func parseSendBuffer(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return SendBuffer(nativeEndian.Uint32(b)), nil
+}
+
+func parseReceiveBuffer(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return ReceiveBuffer(nativeEndian.Uint32(b)), nil
+}
+
+func parseKeepAlive(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return KeepAlive(uint32bool(nativeEndian.Uint32(b))), nil
+}
+
+func parseKeepAliveIdleInterval(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	v := time.Duration(nativeEndian.Uint32(b)) * options[soKeepidle].uot
+	return KeepAliveIdleInterval(v), nil
+}
+
+func parseKeepAliveProbeInterval(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	v := time.Duration(nativeEndian.Uint32(b)) * options[soKeepintvl].uot
+	return KeepAliveProbeInterval(v), nil
+}
+
+func parseKeepAliveProbeCount(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return KeepAliveProbeCount(nativeEndian.Uint32(b)), nil
+}
+
+func parseCork(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return Cork(uint32bool(nativeEndian.Uint32(b))), nil
+}
+
+func parseNotSentLowWMK(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return NotSentLowWMK(nativeEndian.Uint32(b)), nil
+}
+
+func parseError(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return Error(nativeEndian.Uint32(b)), nil
+}
+
+func parseECN(b []byte) (Option, error) {
+	if len(b) < 4 {
+		return nil, errors.New("short buffer")
+	}
+	return ECN(uint32bool(nativeEndian.Uint32(b))), nil
+}