Interface IDataTableFilter

Filter map keyed by column key.

Supports logical combinations:

• AND (default): multiple properties in a single object { status: 'active', price: { op: 'lte', value: 25 } }
• OR: wrap each condition in a $or array { $or: [{ status: 'active' }, { status: 'pending' }] }
• Mixed: AND conditions alongside an OR group { $or: [{ status: 'active' }, { status: 'pending' }], price: { op: 'gt', value: 0 } }