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/appveyor.yml

@@ -0,0 +1,18 @@
+version: "{build}"
+
+branches:
+  only:
+    - master
+
+environment:
+  GOPATH: c:\gopath
+
+install:
+  - set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
+  - mkdir c:\gopath
+  - go get github.com/mikioh/tcp
+  - go get github.com/mikioh/tcpopt
+  - go get github.com/mikioh/tcpinfo
+
+build_script:
+  - go test -v -race