Add cti-evaluation MISP object definition with CTI‑Transmute links

[adulau]

Motivation

• Provide a structured MISP object to record calculated CTI quality and conversion-quality results aligned with the upstream cti-evaluation taxonomy and enable optional links to CTI‑Transmute conversion details.
• Capture both qualitative taxonomy labels and numeric/weight fields so tools can record, calculate, and exchange evaluation results consistently.

Description

• Add objects/cti-evaluation/definition.json (meta-category misc, version: 1, uuid: 7ef56e58-03de-40e5-9958-c7649d8eebf1) defining 52 attributes including dimension labels, numeric scores, per-dimension weights, overall score fields, formula/evidence metadata, and recommendation/limitations fields.
• Include CTI‑Transmute related fields cti-transmute-link (with sane default https://cti-transmute.org/) and cti-transmute-conversion-id, plus taxonomy reference taxonomy-reference pointing to the MISP taxonomy (cti-evaluation/machinetag.json) and taxonomy-tag for applied machine tags.
• Provide values_list for qualitative labels (very-low, low, moderate, high, very-high) on appropriate dimensions and sensible ui-priority and disable_correlation where applicable.

Testing

• Validated JSON formatting with python3 -m json.tool objects/cti-evaluation/definition.json and programmatic validation via jsonschema.validate(...) against schema_objects.json, both succeeding.
• Ran repository checks ./jq_all_the_things.sh, ./unique_uuid.py, and full validation ./validate_all.sh, which completed successfully (repository validation passed) after adding the new object.
• Committed the new file; automated validations used during the rollout all passed.

---

Codex Task