chore(assets): update atomic logo

[flora131]

Summary

Updates the Atomic logo image with a refreshed design.

Changes

• Updated assets/atomic.png with new logo artwork
• Logo is displayed prominently in the README (centered, 800px width)
• Also referenced in project specification files

Impact

• Visual branding update only
• No functional changes to the codebase
• No breaking changes

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[claude]

PR Review: #266 - chore(assets): update atomic logo

Summary

This PR updates the atomic logo image file (assets/atomic.png).

Review

Changes:

• Binary file change: assets/atomic.png was replaced with a new version

Assessment:

✅ Code Quality: N/A - This is a binary asset update with no code changes.

✅ Potential Bugs: No concerns - asset replacement is straightforward.

✅ Performance: The image file change has no runtime performance impact. If file size was significantly increased, it could affect load times for any UI that displays it, but this is minimal for a logo.

✅ Security: No security concerns with updating an image asset.

✅ Test Coverage: N/A - No tests needed for static asset updates.

Overall: This is a clean, simple asset update following proper conventional commit format (chore(assets):). No issues identified.

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Automated review by Claude Code