Add OCR, Background Removal, and PDF Editor features with tests

- Implemented OCR functionality using pytesseract for image and PDF text extraction.
- Added Background Removal service using rembg for image processing.
- Developed PDF Editor service for applying text annotations to PDF files.
- Created corresponding API routes for OCR, Background Removal, and PDF Editor.
- Added frontend components for OCR and Background Removal tools.
- Integrated feature flagging for new tools, ensuring they are disabled by default.
- Implemented comprehensive unit tests for OCR service, PDF editor, and background removal.
- Updated documentation to reflect new features and usage instructions.
- Added translations for new features in English, Arabic, and French.

frontend/src/utils/fileRouting.ts

@@ -16,6 +16,7 @@ import {
   PenLine,
   GitBranch,
   Scaling,
+  ScanText,
 } from 'lucide-react';
 import type { ComponentType, SVGProps } from 'react';
 
@@ -46,12 +47,15 @@ const pdfTools: ToolOption[] = [
   { key: 'pageNumbers', path: '/tools/page-numbers', icon: ListOrdered, bgColor: 'bg-sky-100 dark:bg-sky-900/30', iconColor: 'text-sky-600 dark:text-sky-400' },
   { key: 'pdfEditor', path: '/tools/pdf-editor', icon: PenLine, bgColor: 'bg-rose-100 dark:bg-rose-900/30', iconColor: 'text-rose-600 dark:text-rose-400' },
   { key: 'pdfFlowchart', path: '/tools/pdf-flowchart', icon: GitBranch, bgColor: 'bg-indigo-100 dark:bg-indigo-900/30', iconColor: 'text-indigo-600 dark:text-indigo-400' },
+  { key: 'ocr', path: '/tools/ocr', icon: ScanText, bgColor: 'bg-amber-100 dark:bg-amber-900/30', iconColor: 'text-amber-600 dark:text-amber-400' },
 ];
 
 /** Image tools available when an image is uploaded */
 const imageTools: ToolOption[] = [
   { key: 'imageConvert', path: '/tools/image-converter', icon: ImageIcon, bgColor: 'bg-purple-100 dark:bg-purple-900/30', iconColor: 'text-purple-600 dark:text-purple-400' },
   { key: 'imageResize', path: '/tools/image-resize', icon: Scaling, bgColor: 'bg-teal-100 dark:bg-teal-900/30', iconColor: 'text-teal-600 dark:text-teal-400' },
+  { key: 'ocr', path: '/tools/ocr', icon: ScanText, bgColor: 'bg-amber-100 dark:bg-amber-900/30', iconColor: 'text-amber-600 dark:text-amber-400' },
+  { key: 'removeBg', path: '/tools/remove-background', icon: ImageIcon, bgColor: 'bg-fuchsia-100 dark:bg-fuchsia-900/30', iconColor: 'text-fuchsia-600 dark:text-fuchsia-400' },
   { key: 'imagesToPdf', path: '/tools/images-to-pdf', icon: FileImage, bgColor: 'bg-lime-100 dark:bg-lime-900/30', iconColor: 'text-lime-600 dark:text-lime-400' },
 ];