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/marten-seemann/tcp/README.md

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+Package tcp provides TCP-level socket options that allow manipulation of TCP connection facilities.
+
+[![GoDoc](https://godoc.org/github.com/mikioh/tcp?status.png)](https://godoc.org/github.com/mikioh/tcp)
+[![Build Status](https://travis-ci.org/mikioh/tcp.svg?branch=master)](https://travis-ci.org/mikioh/tcp)
+[![Build status](https://ci.appveyor.com/api/projects/status/q8ejg9mvstq23j3r?svg=true)](https://ci.appveyor.com/project/mikioh/tcp)
+[![Go Report Card](https://goreportcard.com/badge/github.com/mikioh/tcp)](https://goreportcard.com/report/github.com/mikioh/tcp)