docs: Add optimization suggestions by Khushi Tayal

[Khushiagra1234]

Hi Sparrow Team! 👋

I’ve gone through the repository and wanted to share some practical suggestions based on what I noticed. These are just my two cents from working on similar apps before.

What’s Included:

🔹 3 Backend Optimizations (caching, error handling, DB queries)
🔹 3 Frontend Improvements (loading states, mobile UX, forms)

Backend

• Redis caching for API responses
• Better error handling
• Database query optimization

Frontend

• Loading state improvements
• Mobile UX enhancements
• Form validation fixes

Each suggestion includes:

• The problem I spotted
• A simple proposed solution
• Relevant files that would need changes

Why This Matters:

I really liked how clean the codebase is, and I think these tweaks could help make it even more efficient and user-friendly!

Screenshot Proof:

Let me know if you’d like me to explain any suggestion in more detail! Happy to discuss.

Cheers,
Khushi Tayal

[Khushiagra1234]

@gc-codes Hi! Could you please approve running workflows for this PR?
This is my submission for the developer position task. Thank you!

[Khushiagra1234]

@gc-codes @[other-maintainer]
This PR contains my technical suggestions for the hiring task.
Would appreciate your review when convenient. Thank you!

[punitkashyup]

🤖 Sparrow Bot Here!

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