Vertical and alternate aspect-ratio video support

VidBlitz currently focuses on 16:9 long-form YouTube videos. Future format support should include vertical and alternate aspect ratios for repurposing or creating non-16:9 content.

User value: creators want to turn long-form ideas and finished projects into Shorts, Reels, TikTok-style clips, and other platform-specific formats without rebuilding everything in another editor.