chore: add prettier format:check to CI

[vreshch]

Add Prettier Check to CI

Enforce formatting in PR validation pipeline.

Changes

• Add format:check step to PR validation workflow
• Standardize format:check script to prettier --check .
• .prettierignore handles exclusions — no need for glob patterns

Why

Prettier config exists but CI doesn't enforce it — unformatted code can merge.

[github-actions]

🔍 PR Validation ✅

Commit: dfc161adb3fdfd0f3b5e3c357bb9cabdd576fc2a | Branch: chore/add-prettier-ci

📋 Checks

Step	Status
📦 Dependencies	✅
🔍 Linting	✅
🏗️ Build	✅
🐳 Docker	✅
🎭 E2E Tests	✅

🔄 Visual Changes (5 of 20 screenshots)

📊	Count
🔄 Changed	5
✅ Unchanged	15

📸 downloads dark desktop — 100% changed (1,126,400 px)

🔙 Before	🔜 After

📸 downloads dark mobile — 100% changed (556,875 px)

🔙 Before	🔜 After

📸 downloads light desktop — 100% changed (1,126,400 px)

🔙 Before	🔜 After

📸 downloads light mobile — 100% changed (556,875 px)

🔙 Before	🔜 After

📸 home dark mobile — 1.222% changed (16,470 px)

🔙 Before	🔜 After	🔬 Smart Diff

📸 Page Status

Page	🌙 Dark Desktop	🌙 Dark Mobile	☀️ Light Desktop	☀️ Light Mobile
home	✅	🔄	✅	✅
screenshots	✅	✅	✅	✅
documentation	✅	✅	✅	✅
downloads	🔄	🔄	🔄	🔄
support	✅	✅	✅	✅

🚀 Ready to merge!

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🔗 Workflow run · ⬇️ Download all screenshots
⏰ 2026-03-20T21:17:48.533Z