[V2] feat(convert): add support for CBZ to PDF and PDF to CBZ conversion (#4831)

# Description of Changes


TLDR:
- Implemented `ConvertFromCbzSettings` component for CBZ to PDF options
- Added `ConvertToCbzSettings` component for PDF to CBZ options
- Extended conversion constants with new CBZ-related formats and
mappings
- Updated `ConvertSettings` to include CBZ-specific configuration forms
- Updated `useConvertOperation` to handle CBZ conversion parameters

For backend reference see this PR: #4472

This pull request adds support for converting between CBZ (Comic Book
Zip) and PDF formats in the frontend conversion tool. It introduces new
UI components for CBZ-to-PDF and PDF-to-CBZ conversion options, updates
the conversion parameters and form data logic, and integrates these
formats into the available conversion options and endpoints.

**CBZ/PDF Conversion Support:**

* Added `ConvertFromCbzSettings` and `ConvertToCbzSettings` components
to provide user options for CBZ-to-PDF and PDF-to-CBZ conversions,
including "Optimize for ebook" and DPI settings.

**Conversion Logic and Parameters:**

* Extended the `ConvertParameters` interface and default parameters to
include `cbzOptions` (for CBZ-to-PDF) and `cbzOutputOptions` (for
PDF-to-CBZ).

**Conversion Matrix and Endpoint Integration:**

* Added CBZ to the supported "from" and "to" format lists, updated the
conversion matrix to allow CBZ-to-PDF and PDF-to-CBZ, and mapped the new
conversions to appropriate API endpoints.
* Updated URL mapping to recognize `/cbz-to-pdf` and `/pdf-to-cbz` as
conversion tool routes.

### Front-end

<img width="1852" height="994" alt="image"
src="https://github.com/user-attachments/assets/b902438a-8ce7-4eed-a4f8-d80677c0c796"
/>
<img width="270" height="994" alt="image"
src="https://github.com/user-attachments/assets/87556380-e0c5-4974-93c2-d36f86268b49"
/>
<img width="417" height="389" alt="image"
src="https://github.com/user-attachments/assets/1889a3ec-0c06-442a-b3bb-71e1a7c34e4c"
/>
<img width="1853" height="994" alt="image"
src="https://github.com/user-attachments/assets/d6d68f5f-ed70-4be9-89b1-2e4b7cd90921"
/>
<img width="265" height="994" alt="image"
src="https://github.com/user-attachments/assets/36a05dd5-164f-46a7-b8af-aa815d6c0767"
/>




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- Why the change was made
- Any challenges encountered

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---

## Checklist

### General

- [X] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [X] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [X] I have performed a self-review of my own code
- [X] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### UI Changes (if applicable)

- [X] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [X] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

---------

Signed-off-by: Balázs Szücs <[email protected]>

frontend/src/core/constants/convertConstants.ts

@@ -21,6 +21,8 @@ export const CONVERSION_ENDPOINTS = {
   'office-pdf': '/api/v1/convert/file/pdf',
   'pdf-image': '/api/v1/convert/pdf/img',
   'image-pdf': '/api/v1/convert/img/pdf',
+  'cbz-pdf': '/api/v1/convert/cbz/pdf',
+  'pdf-cbz': '/api/v1/convert/pdf/cbz',
   'pdf-office-word': '/api/v1/convert/pdf/word',
   'pdf-office-presentation': '/api/v1/convert/pdf/presentation',
   'pdf-office-text': '/api/v1/convert/pdf/text',
@@ -38,6 +40,8 @@ export const ENDPOINT_NAMES = {
   'office-pdf': 'file-to-pdf',
   'pdf-image': 'pdf-to-img',
   'image-pdf': 'img-to-pdf',
+  'cbz-pdf': 'cbz-to-pdf',
+  'pdf-cbz': 'pdf-to-cbz',
   'pdf-office-word': 'pdf-to-word',
   'pdf-office-presentation': 'pdf-to-presentation',
   'pdf-office-text': 'pdf-to-text',
@@ -57,6 +61,7 @@ export const FROM_FORMAT_OPTIONS = [
   { value: 'any', label: 'Any', group: 'Multiple Files' },
   { value: 'image', label: 'Images', group: 'Multiple Files' },
   { value: 'pdf', label: 'PDF', group: 'Document' },
+  { value: 'cbz', label: 'CBZ', group: 'Archive' },
   { value: 'docx', label: 'DOCX', group: 'Document' },
   { value: 'doc', label: 'DOC', group: 'Document' },
   { value: 'odt', label: 'ODT', group: 'Document' },
@@ -87,6 +92,7 @@ export const TO_FORMAT_OPTIONS = [
   { value: 'pdfa', label: 'PDF/A', group: 'Document' },
   { value: 'docx', label: 'DOCX', group: 'Document' },
   { value: 'odt', label: 'ODT', group: 'Document' },
+  { value: 'cbz', label: 'CBZ', group: 'Archive' },
   { value: 'csv', label: 'CSV', group: 'Spreadsheet' },
   { value: 'pptx', label: 'PPTX', group: 'Presentation' },
   { value: 'odp', label: 'ODP', group: 'Presentation' },
@@ -107,7 +113,8 @@ export const TO_FORMAT_OPTIONS = [
 export const CONVERSION_MATRIX: Record<string, string[]> = {
   'any': ['pdf'], // Mixed files always convert to PDF
   'image': ['pdf'], // Multiple images always convert to PDF
-  'pdf': ['png', 'jpg', 'gif', 'tiff', 'bmp', 'webp', 'docx', 'odt', 'pptx', 'odp', 'csv', 'txt', 'rtf', 'md', 'html', 'xml', 'pdfa'],
+  'pdf': ['png', 'jpg', 'gif', 'tiff', 'bmp', 'webp', 'docx', 'odt', 'pptx', 'odp', 'csv', 'txt', 'rtf', 'md', 'html', 'xml', 'pdfa', 'cbz'],
+  'cbz': ['pdf'],
   'docx': ['pdf'], 'doc': ['pdf'], 'odt': ['pdf'],
   'xlsx': ['pdf'], 'xls': ['pdf'], 'ods': ['pdf'],
   'pptx': ['pdf'], 'ppt': ['pdf'], 'odp': ['pdf'],
@@ -130,8 +137,10 @@ export const EXTENSION_TO_ENDPOINT: Record<string, Record<string, string>> = {
     'csv': 'pdf-to-csv',
     'txt': 'pdf-to-text', 'rtf': 'pdf-to-text', 'md': 'pdf-to-markdown',
     'html': 'pdf-to-html', 'xml': 'pdf-to-xml',
-    'pdfa': 'pdf-to-pdfa'
+    'pdfa': 'pdf-to-pdfa',
+    'cbz': 'pdf-to-cbz'
   },
+  'cbz': { 'pdf': 'cbz-to-pdf' },
   'docx': { 'pdf': 'file-to-pdf' }, 'doc': { 'pdf': 'file-to-pdf' }, 'odt': { 'pdf': 'file-to-pdf' },
   'xlsx': { 'pdf': 'file-to-pdf' }, 'xls': { 'pdf': 'file-to-pdf' }, 'ods': { 'pdf': 'file-to-pdf' },
   'pptx': { 'pdf': 'file-to-pdf' }, 'ppt': { 'pdf': 'file-to-pdf' }, 'odp': { 'pdf': 'file-to-pdf' },