Finds trainees in the company that owns the API key. The q term is matched as a prefix against the trainee's name, email, and phone number combined — e.g. q=israel matches "Israel Israeli", and q=+97250 matches by phone. Matching is case-insensitive. Omit q to list every trainee in the company. Results are always scoped to your company — you cannot find a trainee in another company. Results are paginated and ordered by name; each item has the same shape as the trainee object returned when creating or fetching a single trainee. When nothing matches, the response is 200 with trainees: [] and a human-readable message.