CONV-135: Implement JPG to PNG driver

[menvil]

Summary

• Implements JpgToPngDriver at app/Conversion/Drivers/Image/JpgToPngDriver.php
• Decodes source JPG, encodes to PNG using intervention/image GD driver
• Returns ConversionResult without mutating any models

Test plan

• JpgToPngDriverTest passes (file exists, extension=png, mime=image/png, size>0)
• composer test passes (260 tests)
• composer lint passes

🤖 Generated with Claude Code

---

Summary by cubic

Adds JpgToPngDriver to convert JPG files to PNG using intervention/image (GD), writing the result to the output directory and returning a ConversionResult. Addresses Linear CONV-135 by adding the jpg_to_png conversion path.

• New Features
  • Driver key: jpg_to_png.
  • Decodes source from local storage, encodes to PNG, writes result.png, and returns path, mime, extension, and size.

^{Written for commit 9f9ba99. Summary will update on new commits.}

[coderabbitai]

Important

Review skipped

Auto reviews are limited based on label configuration.

🏷️ Required labels (at least one) (1)

• release

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 9b348e83-3891-4b47-84e7-f549789390a9

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/CONV-135-implement-jpg-to-png-driver

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}