feat: build responsive civic complaint platform frontend

Merge Request Description

This MR adds the responsive frontend for the Smart Urban Civic Complaint & Public Governance Platform.

Changes Included

• Set up React + TypeScript + Vite + Tailwind frontend structure.
• Added premium dark-mode styling with glassmorphism utilities and hover micro-animations.
• Built a responsive homepage with:
  • Sticky navigation
  • Hero section
  • Platform statistics
  • Core feature cards
  • Escalation workflow
  • Role-based platform section
  • Transparency dashboard
• Added ChatGPT-style ChatAssistant component with:
  • Citizen and AI message layout
  • Text complaint input
  • Simulated voice toggle
  • Image, video, and PDF upload support
  • Parent onSubmit(message, files, location) callback
• Added InteractiveMap using React Leaflet with:
  • Hyderabad/Kukatpally map view
  • Ward 123 mock boundary polygon
  • Complaint markers from props
  • Status colors for Pending, In Progress, and Resolved complaints
• Added NoticeBoard with official notices, alerts, and emergency contact cards.
• Added route shells for /, /assistant, /map, and /notices.

Verification

• Ran production build successfully:

npm run build

Result The project now has a complete responsive frontend website for the civic complaint platform, ready for backend/API integration.