GET /tests caps limit at 200, so any page relying on len(results) for a
"total" count (e.g. Validated Tests) silently under-reports once there
are more matches than the page size — the 200 shown was a page cap, not
the real total.
- Adds GET /tests/count, sharing its query-building with list_tests()
via a new _build_test_query() so the two can't drift apart.
- Adds technique_search (free-text on MITRE ID or name), attack_success,
detection_result, and validated_from/validated_to filters, so callers
aren't limited to state/technique_id/platform/creator.
kitos
226869d308