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/go.uber.org/multierr/CHANGELOG.md

@@ -0,0 +1,95 @@
+Releases
+========
+
+v1.11.0 (2023-03-28)
+====================
+-   `Errors` now supports any error that implements multiple-error
+    interface.
+-   Add `Every` function to allow checking if all errors in the chain
+    satisfies `errors.Is` against the target error.
+
+v1.10.0 (2023-03-08)
+====================
+
+-   Comply with Go 1.20's multiple-error interface.
+-   Drop Go 1.18 support.
+    Per the support policy, only Go 1.19 and 1.20 are supported now.
+-   Drop all non-test external dependencies.
+
+v1.9.0 (2022-12-12)
+===================
+
+-   Add `AppendFunc` that allow passsing functions to similar to
+    `AppendInvoke`.
+
+-   Bump up yaml.v3 dependency to 3.0.1.
+
+v1.8.0 (2022-02-28)
+===================
+
+-   `Combine`: perform zero allocations when there are no errors.
+
+
+v1.7.0 (2021-05-06)
+===================
+
+-   Add `AppendInvoke` to append into errors from `defer` blocks.
+
+
+v1.6.0 (2020-09-14)
+===================
+
+-   Actually drop library dependency on development-time tooling.
+
+
+v1.5.0 (2020-02-24)
+===================
+
+-   Drop library dependency on development-time tooling.
+
+
+v1.4.0 (2019-11-04)
+===================
+
+-   Add `AppendInto` function to more ergonomically build errors inside a
+    loop.
+
+
+v1.3.0 (2019-10-29)
+===================
+
+-   Switch to Go modules.
+
+
+v1.2.0 (2019-09-26)
+===================
+
+-   Support extracting and matching against wrapped errors with `errors.As`
+    and `errors.Is`.
+
+
+v1.1.0 (2017-06-30)
+===================
+
+-   Added an `Errors(error) []error` function to extract the underlying list of
+    errors for a multierr error.
+
+
+v1.0.0 (2017-05-31)
+===================
+
+No changes since v0.2.0. This release is committing to making no breaking
+changes to the current API in the 1.X series.
+
+
+v0.2.0 (2017-04-11)
+===================
+
+-   Repeatedly appending to the same error is now faster due to fewer
+    allocations.
+
+
+v0.1.0 (2017-31-03)
+===================
+
+-   Initial release