Update watchlist tags query

Replaces the tag-based query of an existing watchlist. This endpoint requires that the watchlist currently uses tags (not keyphrases) and that at least one valid tag is provided.

Request Formats

V2 Format (Recommended)

Uses explicit includeTags/excludeTags arrays:

{
  "includeTags": ["sports", "esports"],
  "excludeTags": ["politics"],
  "matchOperator": "OR"
}

V1 Format (Deprecated - will be removed in future version)

Uses tags array with include boolean:

{
  "tags": [
    {"tagSlug": "sports", "include": true}
  ],
  "searchMatchOperator": "OR"
}