Add CKEditor comments docs

Author: yoen-velt

api-reference/sdk/api/api-methods.mdx

@@ -595,6 +595,38 @@ Resolves Velt comment annotations back to TinyMCE DOM ranges and renders stable
 - [Full Documentation →](/async-collaboration/comments/setup/tinymce#rendercomments)
 
 
+### CKEditor
+
+<a id="ckeditor-veltcommentsplugin" />
+
+#### VeltCommentsPlugin
+The CKEditor 5 plugin class that powers Velt comments. Add it to the editor's `plugins` list and configure it with `config.veltComments`.
+- Config: [VeltCommentsPluginConfig](/api-reference/sdk/models/data-models#ckeditor-veltcommentspluginconfig)
+- Returns: CKEditor plugin class
+- React Hook: `n/a`
+- [Full Documentation →](/async-collaboration/comments/setup/ckeditor#veltcommentsplugin)
+
+<a id="ckeditor-addcomment" />
+
+#### addComment()
+Creates a comment annotation for the currently selected text in CKEditor.
+- Signature: `async (request:` [AddCommentRequest](/api-reference/sdk/models/data-models#ckeditor-addcommentrequest)`) => Promise<void>`
+- Params: `request:` [AddCommentRequest](/api-reference/sdk/models/data-models#ckeditor-addcommentrequest)
+- Returns: `Promise<void>`
+- React Hook: `n/a`
+- [Full Documentation →](/async-collaboration/comments/setup/ckeditor#addcomment)
+
+<a id="ckeditor-rendercomments" />
+
+#### renderComments()
+Resolves and highlights Velt comment annotations in CKEditor.
+- Signature: `(request:` [RenderCommentsRequest](/api-reference/sdk/models/data-models#ckeditor-rendercommentsrequest)`) => void`
+- Params: `request:` [RenderCommentsRequest](/api-reference/sdk/models/data-models#ckeditor-rendercommentsrequest)
+- Returns: `void`
+- React Hook: `n/a`
+- [Full Documentation →](/async-collaboration/comments/setup/ckeditor#rendercomments)
+
+
 ### Monaco
 
 #### registerVeltComments()

api-reference/sdk/models/data-models.mdx

@@ -653,7 +653,7 @@ Configuration for text formatting toolbar options in comment composers.
 | -------------------- | --------------------- | -------- | -------------------------------------------- |
 | `editor`             | `Editor`              | Yes      | Slate editor instance.                       |
 | `editorId`           | `string`              | No       | Optional editor ID used to scope operations. |
-| `commentAnnotations` | `CommentAnnotation[]` | No       | Annotations to render/highlight.             |
+| `commentAnnotations` | [`CommentAnnotation`](#commentannotation)`[]` | No       | Annotations to render/highlight.             |
 
 For the CommentAnnotation model referenced above, see [CommentAnnotation](#commentannotation).
 
@@ -1176,6 +1176,78 @@ Nested in `CommentAnnotationContext`.
 | `occurrence` | `number` | Yes      | The 1-based occurrence index of the selected text in the document. |
 | `editorId`   | `string` | No       | The editor ID associated with this comment.       |
 
+### CKEditor
+
+<a id="ckeditor-addcommentrequest" />
+
+#### AddCommentRequest
+
+---
+
+Request interface for the CKEditor `addComment()` function.
+
+| Property   | Type                       | Required | Description                                          |
+| ---------- | -------------------------- | -------- | ---------------------------------------------------- |
+| `editor`   | `Editor`                   | Yes      | CKEditor 5 editor instance.                          |
+| `editorId` | `string`                   | No       | Optional editor ID used to scope operations.         |
+| `context`  | [`CommentAnnotationContext`](#ckeditor-commentannotationcontext) | No | Optional custom context to attach to the annotation. |
+
+<a id="ckeditor-rendercommentsrequest" />
+
+#### RenderCommentsRequest
+
+---
+
+Request interface for the CKEditor `renderComments()` function.
+
+| Property             | Type                  | Required | Description                                  |
+| -------------------- | --------------------- | -------- | -------------------------------------------- |
+| `editor`             | `Editor`              | Yes      | CKEditor 5 editor instance.                  |
+| `editorId`           | `string`              | No       | Optional editor ID used to scope operations. |
+| `commentAnnotations` | `CommentAnnotation[]` | No       | Annotations to render/highlight.             |
+
+For the CommentAnnotation model referenced above, see [CommentAnnotation](#commentannotation).
+
+<a id="ckeditor-veltcommentspluginconfig" />
+
+#### VeltCommentsPluginConfig
+
+---
+
+Configuration options for `config.veltComments` in the CKEditor editor config.
+
+| Property           | Type      | Required | Description                                                              |
+| ------------------ | --------- | -------- | ------------------------------------------------------------------------ |
+| `editorId`         | `string`  | No       | Unique identifier for this editor instance.                              |
+| `persistVeltMarks` | `boolean` | No       | Reserved for API parity; highlights are always rendered as an overlay.   |
+
+<a id="ckeditor-commentannotationcontext" />
+
+#### CommentAnnotationContext
+
+---
+
+Context object merged into the Velt comment annotation by `addComment()`.
+
+| Property           | Type                                             | Required | Description                                                |
+| ------------------ | ------------------------------------------------ | -------- | ---------------------------------------------------------- |
+| `textEditorConfig` | [`TextEditorConfig`](#ckeditor-texteditorconfig) | No       | Text editor configuration auto-generated by the library.   |
+| `[key: string]`    | `unknown`                                        | No       | Additional custom properties to attach to the annotation.  |
+
+<a id="ckeditor-texteditorconfig" />
+
+#### TextEditorConfig
+
+---
+
+Logical text anchor stored in `annotation.context.textEditorConfig`.
+
+| Property     | Type     | Required | Description                                       |
+| ------------ | -------- | -------- | ------------------------------------------------- |
+| `text`       | `string` | Yes      | The selected text content.                        |
+| `occurrence` | `number` | Yes      | The occurrence index of the text in the document. |
+| `editorId`   | `string` | No       | The editor ID associated with this comment.       |
+
 ### Monaco
 
 #### AddCommentRequest