fix: add upper limit validation for years of experience

[kumud-05]

📝 Pull Request Description

Related Issue

Closes #449

Summary

This PR fixes the validation for the Years of Experience field while creating a new interview session.

Changes Made

• Added frontend validation to restrict the experience value between 0 and 50.
• Added backend validation to prevent invalid values from being submitted through API requests.
• Displayed clear validation messages for invalid experience values.
• Added max={50} to the experience input field for better user guidance.

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Type of Change

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature
• ♻️ Refactoring
• 📝 Documentation update
• 🎨 UI/UX improvement
• 🔥 Other (please describe) ______

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How Has This Been Tested?

• Tested with valid experience values (0–50) and verified session creation works successfully.
• Tested values greater than 50 and confirmed that an appropriate validation error is displayed.
• Tested negative values and confirmed they are rejected.
• Verified backend validation by ensuring invalid requests are also blocked.

Checklist

• My code follows the project's guidelines
• I have tested my changes
• I have updated documentation where necessary
• I have linked the related issue
• My changes do not introduce new warnings or errors