feat: decode OneNote ink strokes

src/onenote/one/content-model.ts

@@ -145,11 +145,37 @@ export interface OneNoteOutlineGroupBlock {
   children: OneNoteContentBlock[];
 }
 
+export interface OneNoteInkPoint {
+  x: number;
+  y: number;
+}
+
+export interface OneNoteInkBoundingBox {
+  x: number;
+  y: number;
+  width: number;
+  height: number;
+}
+
+export interface OneNoteInkStroke {
+  points: OneNoteInkPoint[];
+  penTip?: number;
+  transparency?: number;
+  width?: number;
+  height?: number;
+  color?: number;
+  bias?: 'handwriting' | 'drawing' | 'both';
+  languageCode?: number;
+}
+
+/** A leaf has strokes; an intermediate grouping container has children. */
 export interface OneNoteInkBlock {
   kind: 'ink';
   id: string;
-  supported: false;
-  description: string;
+  strokes: OneNoteInkStroke[];
+  children: OneNoteInkBlock[];
+  boundingBox?: OneNoteInkBoundingBox;
+  layout: OneNoteLayout;
 }
 
 export interface OneNoteUnsupportedBlock {