UI and backend for basic OCR functionality

frontend/src/app/ocr.service.ts

@@ -0,0 +1,18 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class OcrService {
+  private apiUrl = 'http://localhost:8000/api/ocr';
+
+  constructor(private http: HttpClient) { }
+
+  extractText(file: File): Observable<any> {
+    const formData = new FormData();
+    formData.append('file', file);
+    return this.http.post(`${this.apiUrl}/extract`, formData);
+  }
+}