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/docker/go-units/README.md

@@ -0,0 +1,16 @@
+[![GoDoc](https://godoc.org/github.com/docker/go-units?status.svg)](https://godoc.org/github.com/docker/go-units)
+
+# Introduction
+
+go-units is a library to transform human friendly measurements into machine friendly values.
+
+## Usage
+
+See the [docs in godoc](https://godoc.org/github.com/docker/go-units) for examples and documentation.
+
+## Copyright and license
+
+Copyright © 2015 Docker, Inc.
+
+go-units is licensed under the Apache License, Version 2.0.
+See [LICENSE](LICENSE) for the full text of the license.