score/mw/diag: added C++ API for diag-lib

[MonikaKumari26]

Description

This PR introduces a C++ implementation of the diagnostics API, mirroring the design and implementation provided in the Rust version.

References

• Rust API Design: Initial Rust API design for diag-lib #1
• Rust Implementation: Implementation of initial Rust API Design for diag-lib #2

[github-actions]

License Check Results

🚀 The license check job ran with the Bazel command:

bazel run //:license-check

Status: ⚠️ Needs Review

Click to expand output

[License Check Output]
2026/06/16 14:23:47 Downloading https://releases.bazel.build/8.3.0/release/bazel-8.3.0-linux-x86_64...
Extracting Bazel installation...
Starting local Bazel server (8.3.0) and connecting to it...
INFO: Invocation ID: a78390ee-c4c1-4914-8551-c81ce0dcf652
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
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Analyzing: target //:license-check (1 packages loaded)
Analyzing: target //:license-check (1 packages loaded, 0 targets configured)
Analyzing: target //:license-check (1 packages loaded, 0 targets configured)

Analyzing: target //:license-check (26 packages loaded, 9 targets configured)

Analyzing: target //:license-check (73 packages loaded, 9 targets configured)

Analyzing: target //:license-check (78 packages loaded, 9 targets configured)

Analyzing: target //:license-check (135 packages loaded, 894 targets configured)

Analyzing: target //:license-check (137 packages loaded, 2442 targets configured)

Analyzing: target //:license-check (139 packages loaded, 2466 targets configured)

Analyzing: target //:license-check (139 packages loaded, 2466 targets configured)

Analyzing: target //:license-check (139 packages loaded, 2466 targets configured)

Analyzing: target //:license-check (146 packages loaded, 4479 targets configured)

Analyzing: target //:license-check (146 packages loaded, 4479 targets configured)

Analyzing: target //:license-check (146 packages loaded, 4479 targets configured)

Analyzing: target //:license-check (147 packages loaded, 4603 targets configured)

Analyzing: target //:license-check (148 packages loaded, 4723 targets configured)

Analyzing: target //:license-check (148 packages loaded, 4723 targets configured)

Analyzing: target //:license-check (148 packages loaded, 4723 targets configured)

INFO: Analyzed target //:license-check (149 packages loaded, 6658 targets configured).
[8 / 13] Creating runfiles tree bazel-out/k8-opt-exec-ST-d57f47055a04/bin/external/score_tooling+/dash/tool/formatters/dash_format_converter.runfiles [for tool]; 0s local
[9 / 13] JavaToolchainCompileClasses external/rules_java+/toolchains/platformclasspath_classes; 0s disk-cache, processwrapper-sandbox ... (2 actions running)
[10 / 13] Generating Dash formatted dependency file ...; 1s disk-cache, processwrapper-sandbox ... (2 actions running)
INFO: From Generating Dash formatted dependency file ...:
INFO: Successfully converted 2 packages from Cargo.lock to bazel-out/k8-fastbuild/bin/formatted.txt
INFO: Found 1 target...
Target //:license.check.license_check up-to-date:
  bazel-bin/license.check.license_check
  bazel-bin/license.check.license_check.jar
INFO: Elapsed time: 210.928s, Critical Path: 3.36s
INFO: 13 processes: 9 internal, 3 processwrapper-sandbox, 1 worker.
INFO: Build completed successfully, 13 total actions
INFO: Running command line: bazel-bin/license.check.license_check ./formatted.txt <args omitted>
usage: org.eclipse.dash.licenses.cli.Main [-batch <int>] [-cd <url>]
       [-confidence <int>] [-ef <url>] [-excludeSources <sources>] [-help] [-lic
       <url>] [-project <shortname>] [-repo <url>] [-review] [-summary <file>]
       [-timeout <seconds>] [-token <token>]

[github-actions]

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