Sebastian Krüger f253285c25 feat: add comprehensive conversion options and enhanced UI ...

This major update adds powerful format-specific controls, quality presets,
file metadata display, and enhanced progress feedback to significantly
improve the user experience.

New Components:
- ConversionOptionsPanel: Format-specific controls with collapsible advanced options
  - Video options: codec selection (H.264, H.265, VP8, VP9), bitrate, resolution, FPS
  - Audio options: codec selection, bitrate, sample rate, channels
  - Image options: quality slider, width/height controls
- Quality Presets: One-click presets (High Quality, Balanced, Small File, Web Optimized)
- FileInfo: Displays file metadata including size, duration, dimensions
- Slider: Reusable slider component for quality/bitrate controls
- Select: Reusable dropdown component for codec/format selection

Enhanced Features:
- ConversionPreview improvements:
  - Real-time elapsed time display
  - Estimated time remaining calculation
  - File size comparison (input vs output with % reduction/increase)
  - Better visual status indicators with icons
  - Enhanced loading states with detailed progress
- FileConverter integration:
  - Passes conversion options to converter services
  - Manages conversion options state
  - Resets options on file reset

UI/UX Improvements:
- Format-specific option panels that adapt to selected output format
- Visual preset buttons with icons and descriptions
- Collapsible advanced options to reduce clutter
- Better progress feedback with time estimates
- File size comparison badges showing compression results
- Smooth animations and transitions (existing animations already in place)
- Responsive design for all new components

Technical Details:
- Options are properly typed and integrated with ConversionOptions interface
- All components support disabled states during conversion
- Preview component calculates speed and estimates remaining time
- Metadata extraction for video/audio/image files using browser APIs
- Proper cleanup of object URLs and timers

User Benefits:
- Power users can fine-tune codec, bitrate, resolution settings
- Beginners can use quality presets with confidence
- Better understanding of conversion progress and file size impact
- Informed decisions with file metadata display
- Professional-grade control over output quality

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2025-11-17 11:46:10 +01:00

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