feat : added AI interview answer body language analyzer

[tmdeveloper007]

Summary of What Has Been Done

Added a new AI-powered frontend page at frontend/src/pages/AIInterviewAnswerBodyLanguageAnalyzer/ that provides a guided self-assessment tool for non-verbal interview communication skills.

Changes Made

• Created AIInterviewAnswerBodyLanguageAnalyzer.jsx with:
  • 3 mock interview questions with category labels
  • Posture checklist with toggleable items
  • Eye contact score section with progress bar
  • Facial expression analysis cards (neutral, engaged, tense)
  • Hand gesture feedback section
  • Overall non-verbal readiness score dashboard
  • Improvement tips in a gradient card
  • Session comparison trend
  • Dark mode support throughout
  • All icons from lucide-react (no emoji in code)

Impact it Made

• Helps users become aware of non-verbal communication habits during interviews
• Provides structured self-assessment for posture, eye contact, and gestures
• Complements the existing verbal answer analysis tools

Closes #1897

Note: please assign this PR to the tmdeveloper007 account.

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Reviewing files that changed from the base of the PR and between 24aa424 and 3c6f005.

📒 Files selected for processing (1)

• frontend/src/pages/AIInterviewAnswerBodyLanguageAnalyzer/AIInterviewAnswerBodyLanguageAnalyzer.jsx

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