feat(supabase): add image provider

[Patrity]

🔗 Linked issue

Resolves #685
closes #686 (draft PR from 2022 that stalled without test coverage)

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Adds Supabase Storage as a built-in image provider for automatic image transformations powered by imgproxy.

Features:

• Supports width, height, quality, format, and resize modifiers
• Maps standard Nuxt Image fit modifier to Supabase's resize parameter
• Automatic WebP conversion (or use format=origin to preserve original)
• Works with public buckets via Supabase's render endpoint

Implementation:

• Provider: src/runtime/providers/supabase.ts
• Tests: Full test coverage including all modifier combinations
• Docs: docs/content/3.providers/supabase.md with configuration examples and limitations
• Playground: Added configuration and samples for testing

Limitations:

• Public buckets only (signed URLs not supported)
• Requires Supabase Pro tier or above
• Max image size: 25MB, max resolution: 50MP

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/@nuxt/image@2027

commit: d514e4c

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 34 lines in your changes missing coverage. Please review.
✅ Project coverage is 7.00%. Comparing base (29de14a) to head (d514e4c).

Files with missing lines	Patch %	Lines
src/runtime/providers/supabase.ts	0.00%	32 Missing and 1 partial ⚠️
src/provider.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##            main   #2027      +/-   ##
========================================
- Coverage   7.07%   7.00%   -0.07%     
========================================
  Files         77      78       +1     
  Lines       3590    3624      +34     
  Branches     139     140       +1     
========================================
  Hits         254     254              
- Misses      3288    3321      +33     
- Partials      48      49       +1     

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[danielroe]

thank you so much! ❤️