[TASK] Support mimeTypes filtering in /api/v1/drive/search

[nicobytes]

Description

As a frontend developer implementing the File Picker component, I want to filter results by specific MIME types (e.g., images, PDFs) when using the /api/v1/drive/search endpoint, So that the file picker displays only the relevant assets to the user, replacing the functionality currently provided by the legacy /api/v1/browser endpoint.

Context & Problem Statement

We are currently migrating the "Select Existing File" picker component to use the new, more efficient /api/v1/drive/search endpoint (Elasticsearch-backed) instead of the legacy /api/v1/browser endpoint (DB-backed).

Currently, the legacy /api/v1/browser supports a mimeTypes array parameter:

JSON

{
    "hostFolderId": "SYSTEM_HOST",
    "mimeTypes": ["image/jpeg", "image/png"], // Existing functionality
    "showLinks": false,
    ...
}

However, the new /api/v1/drive/search endpoint does not yet support filtering by MIME type. It currently looks like this:

{
    "assetPath": "//demo.dotcms.com/activities/",
    "filters": {
        "text": "",
        "filterFolders": true
    },
    ...
}

Without this filter, the picker displays all file types, which degrades the user experience when specific asset types (like images only) are required.

Acceptance Criteria

Parameter Support: The /api/v1/drive/search endpoint accepts a list of MIME types in the request payload.

Priority

None

Additional Context

No response