hmon: parametrizable background health thread

[arkjedrz]

Expose parameters to background thread.

[github-actions]

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[github-actions]

The created documentation from the pull request is available at: docu-html

[Copilot]

Pull request overview

This PR exposes configurable parameters for the background monitoring thread, allowing callers (incl. C++ via FFI) to tune scheduling/affinity/stack size for the health monitor worker thread.

Changes:

• Add a Rust/C++ FFI surface for constructing thread parameters and pass them into health_monitor_builder_build.
• Thread runner now spawns the monitoring loop using a parameterizable thread crate API and stores ThreadParameters in the builder/runner.
• Wire C++ HealthMonitorBuilder::thread_parameters(...) through to Rust, and update existing tests/build files accordingly.

Reviewed changes

Copilot reviewed 17 out of 19 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/health_monitoring_lib/rust/worker.rs	Use parameterized thread spawn and store ThreadParameters in the runner.
src/health_monitoring_lib/rust/thread_ffi.rs	New Rust FFI for creating/configuring thread parameters from C/C++.
src/health_monitoring_lib/rust/ffi.rs	Extend health_monitor_builder_build to accept an optional thread-parameters handle.
src/health_monitoring_lib/rust/health_monitor.rs	Add builder API to set thread parameters and plumb to worker creation.
src/health_monitoring_lib/rust/lib.rs	Include the new thread_ffi module.
src/health_monitoring_lib/rust/*/ffi.rs	Update tests to call the new health_monitor_builder_build signature.
src/health_monitoring_lib/cpp/include/score/hm/thread.h	New C++ public API types for thread parameters (policy/priority/affinity/stack).
src/health_monitoring_lib/cpp/thread.cpp	C++ implementation bridging to Rust thread-parameter FFI.
src/health_monitoring_lib/cpp/include/score/hm/health_monitor.h / cpp/health_monitor.cpp	Add HealthMonitorBuilder::thread_parameters and pass handle into Rust build call.
src/health_monitoring_lib/cpp/tests/health_monitor_test.cpp	Exercise setting thread parameters in a C++ test.
src/health_monitoring_lib/Cargo.toml / root Cargo.toml / Cargo.lock	Add dependency on the thread crate and pin it.
src/health_monitoring_lib/BUILD / MODULE.bazel*	Add Bazel deps/sources for the new thread API.

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