Fix duplicate OpenAPI path definitions

[anushka11p]

Summary

Fixes the API documentation page by removing duplicate path definitions from public/openapi.yaml. The OpenAPI specification now parses successfully and renders correctly in Swagger UI.

Closes #3263

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Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that changes existing behavior)
• 📝 Documentation update
• ♻️ Refactor / code cleanup (no functional change)
• ⚡ Performance improvement
• 🔒 Security fix
• 🧪 Tests only

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What Changed

• Removed duplicate /api/public/{username} mapping from public/openapi.yaml.
• Removed duplicate /api/streak/freeze mapping from public/openapi.yaml.
• Verified that the OpenAPI 3.1 specification parses without duplicate-key errors.

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How to Test

1. npm install
2. npm run dev

Expected result:

The API documentation page renders successfully without YAML parsing errors, and /api/public/{username} and /api/streak/freeze each appear only once.

Screenshots / Recordings

| Before | After |
before:-

After:-

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Checklist

• Linked the related issue above
• Self-reviewed my own diff
• No unnecessary console.log, debug code, or commented-out blocks
• npm run lint passes locally
• No TypeScript errors (npm run type-check)
• Added or updated tests where applicable
• Updated documentation / comments if behavior changed

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Accessibility (UI changes only)

• Keyboard navigation works correctly
• Color contrast meets WCAG AA standard
• ARIA labels / roles added where needed
• Tested on mobile / responsive layout

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Additional Context

[github-actions]

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