feat(cloudflareimages): add new provider

[huang-julien]

🔗 Linked issue

❓ 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

This PR adds Cloudflare Image provider, its a bit different from the main Cloudflare provider which is the cloudflare transformation service.

This adds a variant modifier but still allows CLoudflare transformation url params (users needs to enable flexible variant)

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/@nuxt/image@2100

commit: 28e7836

[cloudflare-workers-and-pages]

Deploying nuxt-image with    Cloudflare Pages

Latest commit:	28e7836
Status:	✅  Deploy successful!
Preview URL:	https://241ab5fa.nuxt-image.pages.dev
Branch Preview URL:	https://feat-cloudflareimages.nuxt-image.pages.dev

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[coderabbitai]

📝 Walkthrough

Walkthrough

Adds Cloudflare Images as a built-in provider. Updates BuiltInProviders in src/provider.ts to include cloudflareimages, and adds a new provider module src/runtime/providers/cloudflareimages.ts exporting CloudflareImagesModifiers, CloudflareImagesOptions, and a default provider implementing getImage that builds Cloudflare Images URLs (default baseURL https://imagedelivery.net/ and default variant public), using an operations string when modifiers are present. Adds tests, an end-to-end snapshot, test data updates, documentation docs/content/3.providers/cloudflareimages.md, and playground samples/config for the provider.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description clearly explains that this PR adds a Cloudflare Images provider distinct from the existing Cloudflare transformation provider, with details about variant modifiers and flexibility.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title 'feat(cloudflareimages): add new provider' accurately describes the main change—adding a new Cloudflare Images provider to the codebase with clear scope and specificity.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/cloudflareimages

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 32.52%. Comparing base (de473d2) to head (28e7836).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2100   +/-   ##
=======================================
  Coverage   32.52%   32.52%           
=======================================
  Files           7        7           
  Lines         372      372           
  Branches      131      131           
=======================================
  Hits          121      121           
  Misses        194      194           
  Partials       57       57           

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@test/nuxt/providers.test.ts`:
- Around line 115-143: Tests use an undefined variable emptyContext in calls to
cloudflareimages().getImage; replace uses of emptyContext with a call to
getEmptyContext() so the tests compile and match other tests in the file (update
the three occurrences in the cloudflareimages / cloudflareimage variant tests
where getImage is invoked).

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 48f18279-22a1-48cb-ab4c-98b1ef55df1e

📥 Commits

Reviewing files that changed from the base of the PR and between 2f4a531 and dde2e0d.

📒 Files selected for processing (7)

• docs/content/3.providers/cloudflareimages.md
• playground/app/providers.ts
• playground/nuxt.config.ts
• src/provider.ts
• src/runtime/providers/cloudflareimages.ts
• test/nuxt/providers.test.ts
• test/providers.ts

✅ Files skipped from review due to trivial changes (2)

• playground/app/providers.ts
• docs/content/3.providers/cloudflareimages.md

🚧 Files skipped from review as they are similar to previous changes (1)

• src/runtime/providers/cloudflareimages.ts