Verify that the plugin is correctly packaged as an RHDH dynamic plugin and OCI artifact.

Related issue: FLPATH-2739

Test Steps:
1. Verify plugin builds successfully
2. Check dynamic plugin package output in plugins/cost-management/package.json
3. Verify packaging scripts work (build-dynamic-plugin.sh, Containerfile)
4. Check plugin-manifest.json contains required metadata
5. Verify OCI artifact is published correctly
6. Test installing the dynamic plugin in RHDH
7. Verify plugin loads and functions after installation

Expected Results:

• Plugin builds without errors
• Dynamic plugin format is correct per RHDH specifications
• OCI artifact is available and installable
• Plugin manifest contains required metadata
• Plugin installs and works correctly in RHDH