Add OLM toolset with Subscription tracing tool

[edcdavid]

Introduce a new "olm" toolset with a trace_olm_subscription tool that walks the full OLM dependency chain (Subscription -> CatalogSource -> InstallPlan -> CSV) and pinpoints the exact step where an operator installation is failing. Returns structured JSON with per-step status and a summary, enabling AI assistants to quickly diagnose OLM issues.

The tool is registered as a separate toolset so it can be independently enabled/disabled via configuration.

Assisted by: Cursor.

[openshift-ci]

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This pull-request has been approved by: edcdavid
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[matzew]

Thanks for the PR!

Unlike other toolsets (e.g. kiali or kubevirt) here are no new tests in this PR.
Also, the README.md is not updated. Please run the make update-readme-tools target.

[matzew]

@edcdavid On the specifics of the olm tools, it would be nice to have a review from another olm engineer, if that is possible