optimize snapshots: convert PNGs to WebP for reduced repo size

[ufraaan]

related issue

closes #41 - Large image assets in /public directory slow down cloning

summary

converted screenshot assets in /public/snapshots from PNG to WebP format to significantly reduce repository size and improve clone performance for contributors.

impact

• before: /snapshots directory was ~108 MB
• after: /snapshots directory is ~7.31 MB
• net reduction: 100.7 MB (93% smaller)

technical changes

• converted all PNG screenshots in /snapshots/ to WebP format using lossless compression
• preserved social media preview images (og-banner.png, twitter (𝕏) cards) in original PNG format to ensure cross-platform compatibility
• maintained all existing file references and metadata

benefits

• faster repository cloning and forking for new contributors
• reduced bandwidth consumption for CI/CD pipelines
• lower storage overhead while preserving image quality
• maintained social media preview functionality across all platforms

implementation notes

this change focuses on local asset optimization...
the WebP format provides superior compression ratios compared to PNG while maintaining visual fidelity. social preview assets remain in PNG format as WebP support varies across social media platforms and crawlers.

future considerations for additional optimization (CDN migration, lazy loading) can be addressed in separate initiatives.

[vercel]

@moroii69 is attempting to deploy a commit to the Megh Bari Team on Vercel.

A member of the Team first needs to authorize it.