fix: rename middleware.ts to proxy.ts (Next.js 16.2.7 deprecation)

[Kokila-chandrakar]

Description

Fixes #4839

Renames middleware.ts to proxy.ts and updates the exported function name from middleware to proxy as required by Next.js 16.2.7 deprecation. Also updates middleware.test.ts to proxy.test.ts with correct imports.

Pillar

• 🎨 Pillar 1 — New Theme Design
• 📐 Pillar 2 — Geometric SVG Improvement
• 🕐 Pillar 3 — Timezone Logic Optimization
• 🛠️ Other (Bug fix, refactoring, docs)

Visual Preview

No visual changes — file rename and import updates only.

Checklist before requesting a review:

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[github-actions]

🚨 Hey @Kokila-chandrakar, the CI Pipeline is failing on this PR and it has been marked as status:blocked.

Please fix the issues before this can be reviewed. Here's how:

1. Run checks locally before pushing:

npm run format:check   # Check Prettier formatting
npm run lint           # Run ESLint
npm run typecheck      # TypeScript type check
npm run test           # Run unit tests (Vitest)
npm run build          # Verify production build passes

2. Auto-fix common issues:

npm run format         # Auto-fix formatting with Prettier
npm run lint -- --fix  # Auto-fix lint errors where possible

3. Check the full failure log here:
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Once you push a fix and the CI passes, the status:blocked label will be removed automatically. 💪

[Aamod-Dev]

I've reviewed the PR and while the functionality seems to be there, I have a few concerns regarding the implementation details. Let's address these before moving forward.

• This is quite a large PR. While the changes seem generally okay, this logic somewhat duplicates existing functionality already present in other modules. Reusing shared utilities would help keep the codebase consistent. Could we look into breaking this down or refactoring?

Once these issues are addressed, I'll be happy to take another look. Thanks again for the contribution.

[Aamod-Dev]

Good work on this one. I reviewed the diff and it looks ready to go from my side.

Looks solid. I'll go ahead and approve.

[github-actions]

🎉 Congratulations @Kokila-chandrakar! Your PR has been successfully merged. 🚀

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