Summary

• Switch display font from Bebas Neue to Syne across landing page, header wordmark, and logo styles
• Rename frontend package from ai-live-doubt-manager to streammind
• Update FastAPI app description to reflect current project identity
• Refresh landing page screenshot assets

Changes

• frontend/src/index.css — replaced Bebas Neue with Syne, adjusted font sizes, letter-spacing, and removed uppercase transforms
• frontend/package.json / package-lock.json — package name → streammind
• backend/app/main.py — updated API description string
• Assets/ — refreshed 3 screenshot images

Test plan

• Verify landing page renders correctly with Syne font in both light and dark mode
• Confirm header wordmark displays properly on the dashboard
• Check /docs shows updated API description