feat: add enhanced room scoring, full submission attempts history, and detailed user reports (Fixes #75, Closes #76)

[Ayushtri441]

Description

This pull request implements enhanced room scoring (+100 for Accepted, -5 for Failed Attempt), full submission attempts history tracking, and detailed per-user submission report modals on the Scoreboard UI.

Linked Issues

• Fixes [BUG] Submission Solve-Time Calculations Corrupted by Local Timezone Offset Shift #75 – [BUG] Submission Solve-Time Calculations Corrupted by Local Timezone Offset Shift
• Closes [FEATURE] Enhanced Room Scoring (+100/-5) and Detailed User Submission Reports #76 – [FEATURE] Enhanced Room Scoring (+100/-5) and Detailed User Submission Reports

Changes Included

1. Enhanced Results Toggle: Added enableEnhancedResults setting to room creation/settings modal.
2. Multi-Attempt History: Updated Prisma schema to record all submission attempts per user per question.
3. Point-Based Scoring: Real-time scoring calculation: (Accepted * 100) + (Failed * -5).
4. Detailed User Reports: Clicking a username on the Scoreboard opens a modal detailing per-question scores, attempt history, and direct LeetCode submission links.
5. Background Messaging Error Catching: Handled chrome.runtime.lastError in background.js to eliminate receiving end connection errors.

[vercel]

@Ayushtri441 is attempting to deploy a commit to the marwanhawari's projects Team on Vercel.

A member of the Team first needs to authorize it.