V2: Convert Tool (#3828)

🔄 Dynamic Processing Strategies

- Adaptive routing: Same tool uses different backend endpoints based on
file analysis
- Combined vs separate processing: Intelligently chooses between merge
operations and individual file processing
- Cross-format workflows: Enable complex conversions like "mixed files →
PDF" that other tools can't handle

  ⚙️ Format-Specific Intelligence

  Each conversion type gets tailored options:
  - HTML/ZIP → PDF: Zoom controls (0.1-3.0 increments) with live preview
  - Email → PDF: Attachment handling, size limits, recipient control
  - PDF → PDF/A: Digital signature detection with warnings
  - Images → PDF: Smart combining vs individual file options

 File Architecture

  Core Implementation:
  ├── Convert.tsx                     # Main stepped workflow UI
├── ConvertSettings.tsx # Centralized settings with smart detection
├── GroupedFormatDropdown.tsx # Enhanced format selector with grouping
├── useConvertParameters.ts # Smart detection & parameter management
  ├── useConvertOperation.ts         # Multi-strategy processing logic
  └── Settings Components:
      ├── ConvertFromWebSettings.tsx      # HTML zoom controls
      ├── ConvertFromEmailSettings.tsx    # Email attachment options
├── ConvertToPdfaSettings.tsx # PDF/A with signature detection
      ├── ConvertFromImageSettings.tsx    # Image PDF options
      └── ConvertToImageSettings.tsx      # PDF to image options

 Utility Layer

  Utils & Services:
├── convertUtils.ts # Format detection & endpoint routing
  ├── fileResponseUtils.ts          # Generic API response handling
└── setupTests.ts # Enhanced test environment with crypto mocks

  Testing & Quality

  Comprehensive Test Coverage

  Test Suite:
├── useConvertParameters.test.ts # Parameter logic & smart detection
  ├── useConvertParametersAutoDetection.test.ts  # File type analysis
├── ConvertIntegration.test.tsx # End-to-end conversion workflows
  ├── ConvertSmartDetectionIntegration.test.tsx  # Mixed file scenarios
  ├── ConvertE2E.spec.ts                     # Playwright browser tests
├── convertUtils.test.ts # Utility function validation
  └── fileResponseUtils.test.ts              # API response handling

  Advanced Test Features

  - Crypto API mocking: Proper test environment for file hashing
  - File.arrayBuffer() polyfills: Complete browser API simulation
  - Multi-file scenario testing: Complex batch processing validation
- CI/CD integration: Vitest runs in GitHub Actions with proper artifacts

---------

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

frontend/src/components/shared/FileGrid.tsx

@@ -20,6 +20,7 @@ interface FileGridProps {
   onShowAll?: () => void;
   showingAll?: boolean;
   onDeleteAll?: () => void;
+  isFileSupported?: (fileName: string) => boolean; // Function to check if file is supported
 }
 
 type SortOption = 'date' | 'name' | 'size';
@@ -37,7 +38,8 @@ const FileGrid = ({
   maxDisplay,
   onShowAll,
   showingAll = false,
-  onDeleteAll
+  onDeleteAll,
+  isFileSupported
 }: FileGridProps) => {
   const { t } = useTranslation();
   const [searchTerm, setSearchTerm] = useState("");
@@ -123,16 +125,18 @@ const FileGrid = ({
         {displayFiles.map((file, idx) => {
           const fileId = file.id || file.name;
           const originalIdx = files.findIndex(f => (f.id || f.name) === fileId);
+          const supported = isFileSupported ? isFileSupported(file.name) : true;
           return (
             <FileCard
               key={fileId + idx}
               file={file}
               onRemove={onRemove ? () => onRemove(originalIdx) : undefined}
-              onDoubleClick={onDoubleClick ? () => onDoubleClick(file) : undefined}
-              onView={onView ? () => onView(file) : undefined}
-              onEdit={onEdit ? () => onEdit(file) : undefined}
+              onDoubleClick={onDoubleClick && supported ? () => onDoubleClick(file) : undefined}
+              onView={onView && supported ? () => onView(file) : undefined}
+              onEdit={onEdit && supported ? () => onEdit(file) : undefined}
               isSelected={selectedFiles.includes(fileId)}
-              onSelect={onSelect ? () => onSelect(fileId) : undefined}
+              onSelect={onSelect && supported ? () => onSelect(fileId) : undefined}
+              isSupported={supported}
             />
           );
         })}