Expand Contact Search API with Partial Matching and Flexible Filters

Currently, the /search/contacts API endpoint only supports exact email matches, which limits workflows that require more dynamic querying (e.g., email enrichment, integrations).

Request to enhance the API by adding:

Search by first name, last name, company, and other key fields

Support for partial matches (not just exact)

Additional filtering options to refine results

These improvements would make the API far more powerful and allow developers to build scalable, flexible integrations.