Initial plan

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

content/docs/references/data/filter.mdx

@@ -119,6 +119,7 @@ const result = EqualityOperator.parse(data);
 | Property | Type | Required | Description |
 | :--- | :--- | :--- | :--- |
 | **$contains** | `string` | optional |  |
+| **$notContains** | `string` | optional |  |
 | **$startsWith** | `string` | optional |  |
 | **$endsWith** | `string` | optional |  |