feat: Implement core /audition page with ongoing and past auditions

[tusharshah21]

audition.page.mp4

• Ongoing Auditions: Interactive grid of audition cards featuring video placeholders, details (deadline, participants, prize), and preface disclaimers. Links to individual audition pages.
• Past Auditions: Recap-style cards with competition stats, winners, and performance metrics in a DAW-inspired layout.
• UI/UX: Creative design merging reel aesthetics with professional audio workstation feel, using Tailwind CSS and shadcn/ui components.
• Tech: Mock data structure for easy API integration; responsive, animated, and accessible.

Closes #97

[tusharshah21]

lol, I forgot about the lint and build test, it got hit me like rock, still a wrap up if it solves the issue!