deps(embedPDF): Bump codebase to embedPDF v2.3.0 and adjust codebase for new features (#5567)

# Description of Changes

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Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)
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---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] 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)
- [ ] I have performed a self-review of my own code
- [ ] 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)

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

### Testing (if applicable)

- [ ] 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]>
Co-authored-by: Anthony Stirling <[email protected]>

frontend/src/core/contexts/ViewerContext.tsx

@@ -38,6 +38,8 @@ import {
   ExportState,
   ThumbnailAPIWrapper,
   BookmarkState,
+  DocumentPermissionsState,
+  PdfPermissionFlag,
 } from '@app/contexts/viewer/viewerBridges';
 import { SpreadMode } from '@embedpdf/plugin-spread/react';
 
@@ -112,6 +114,8 @@ interface ViewerContextType {
   getExportState: () => ExportState;
   getBookmarkState: () => BookmarkState;
   hasBookmarkSupport: () => boolean;
+  getDocumentPermissions: () => DocumentPermissionsState;
+  hasPermission: (flag: PdfPermissionFlag) => boolean;
 
   // Immediate update callbacks
   registerImmediateZoomUpdate: (callback: (percent: number) => void) => () => void;
@@ -308,6 +312,34 @@ export const ViewerProvider: React.FC<ViewerProviderProps> = ({ children }) => {
 
   const hasBookmarkSupport = () => Boolean(bridgeRefs.current.bookmark);
 
+  const getDocumentPermissions = (): DocumentPermissionsState => {
+    return bridgeRefs.current.permissions?.state || {
+      isEncrypted: false,
+      isOwnerUnlocked: false,
+      permissions: PdfPermissionFlag.AllowAll,
+      canPrint: true,
+      canModifyContents: true,
+      canCopyContents: true,
+      canModifyAnnotations: true,
+      canFillForms: true,
+      canExtractForAccessibility: true,
+      canAssembleDocument: true,
+      canPrintHighQuality: true,
+    };
+  };
+
+  const hasPermission = (flag: PdfPermissionFlag): boolean => {
+    const api = bridgeRefs.current.permissions?.api;
+    if (api?.hasPermission) {
+      return api.hasPermission(flag);
+    }
+    // Default: allow all permissions - warn in development
+    if (process.env.NODE_ENV === 'development') {
+      console.warn('[ViewerContext] Permissions API not available, defaulting to allow');
+    }
+    return true;
+  };
+
   // Action handlers - call APIs directly
   const {
     scrollActions,
@@ -360,6 +392,8 @@ export const ViewerProvider: React.FC<ViewerProviderProps> = ({ children }) => {
     getExportState,
     getBookmarkState,
     hasBookmarkSupport,
+    getDocumentPermissions,
+    hasPermission,
 
     // Immediate updates
     registerImmediateZoomUpdate,