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/nats-io/nats.go/dependencies.md

@@ -0,0 +1,15 @@
+# External Dependencies
+
+This file lists the dependencies used in this repository.
+
+| Dependency                        | License      |
+|-----------------------------------|--------------|
+| Go                                | BSD 3-Clause |
+| github.com/golang/protobuf/proto  | BSD-3-Clause |
+| github.com/klauspost/compress     | BSD-3-Clause |
+| github.com/nats-io/nats-server/v2 | Apache-2.0   |
+| github.com/nats-io/nkeys          | Apache-2.0   |
+| github.com/nats-io/nuid           | Apache-2.0   |
+| go.uber.org/goleak                | MIT          |
+| golang.org/x/text                 | BSD-3-Clause |
+| google.golang.org/protobuf        | BSD-3-Clause |