feat(ocr): add smartai extraction support

test/test.ts

@@ -1,5 +1,6 @@
 import { expect, tap } from '@push.rocks/tapbundle';
 import * as smartocr from '../ts/index.js';
+import type { ISmartAiOcrEngine } from '@push.rocks/smartai/ocr';
 
 let testOcrInstance: smartocr.SmartOcr;
 
@@ -8,11 +9,52 @@ tap.test('should create a valid instance of Smartocr', async () => {
   expect(testOcrInstance).toBeInstanceOf(smartocr.SmartOcr);
 });
 
+tap.test('should recognize image buffers through SmartAI OCR', async () => {
+  const calls: unknown[] = [];
+  const smartAiOcrEngine: ISmartAiOcrEngine = {
+    recognizeImage: async (input) => {
+      calls.push(input);
+      return {
+        text: 'hello from smartai',
+        confidence: 0.92,
+        pages: [
+          {
+            index: 0,
+            text: 'hello from smartai',
+            confidence: 0.92,
+          },
+        ],
+        raw: {
+          pages: [
+            {
+              index: 0,
+              markdown: 'hello from smartai',
+            },
+          ],
+          model: 'mock-ocr',
+        },
+      };
+    },
+  };
+
+  const result = await testOcrInstance.recognizeImageBufferWithSmartAi(Buffer.from('image data'), {
+    mimeType: 'image/png',
+    smartAiOcrEngine,
+  });
+
+  expect(result.text).toEqual('hello from smartai');
+  expect(result.confidence).toEqual(0.92);
+  expect(calls[0]).toEqual({
+    dataBase64: Buffer.from('image data').toString('base64'),
+    mimeType: 'image/png',
+  });
+});
+
 tap.test('should ocr a pdfBuffer', async () => {
   const smartfile = await import('@push.rocks/smartfile');
-  const pdfBuffer = (await smartfile.SmartFile.fromFilePath('./test/demo_without_textlayer.pdf'))
-    .contentBuffer;
-  const resultBuffer = await testOcrInstance.processPdfBuffer(pdfBuffer);
+  const smartfileFactory = smartfile.SmartFileFactory.nodeFs();
+  const pdfFile = await smartfileFactory.fromFilePath('./test/demo_without_textlayer.pdf');
+  const resultBuffer = await testOcrInstance.processPdfBuffer(pdfFile.contentBuffer);
   console.log(resultBuffer);
 });