feat(api): add Shiki syntax highlighting support for UCD files

[luxass]

• Introduced new route for syntax highlighting of UCD files using Shiki.
• Added eligibility checks for file types and sizes.
• Implemented error handling for unsupported media types and payload size limits.
• Updated package.json and lock files to include shiki and shiki-stream dependencies.

🔗 Linked issue

📚 Description

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch shiki-endpoint

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[github-actions]

🌏 Preview Deployments

Application	Status	Preview URL
API	⏳ In Progress	N/A
Store	⏳ In Progress	N/A
Website	⏳ In Progress	N/A
Documentation	⏳ In Progress	N/A

Built from commit: ff2ae8f42104a78184f46a78759dac8f58230d10

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[github-actions]

📋 OpenAPI Schema Analysis

Summary

API Endpoints

Change Type	Count	Details
🟢 Added	1	New API endpoints
🔴 Removed	0
🟡 Modified	0	Endpoints with method changes
📊 Method Changes	+1 / -0	Added/Removed HTTP methods

Overall Status

Status	Result
⚠️ Breaking Changes	No - No breaking changes detected

Detailed Changes

🟢 Added Endpoints (1)

Path	Methods	Description
/api/v1/files/__shiki/{wildcard}	GET	No description

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[codecov]

Codecov Report

❌ Patch coverage is 5.76923% with 49 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
packages/worker-utils/src/content-validation.ts	4.54%	13 Missing and 29 partials ⚠️
packages/worker-utils/src/index.ts	0.00%	5 Missing and 2 partials ⚠️

📢 Thoughts on this report? Let us know!