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Synchronized Stopwatch Feature
Summary:
This pull request introduces a real-time synchronized stopwatch feature scoped per assessment, controllable by authorized facilitators or admins. It includes backend API routes using Server-Sent Events (SSE) for communication and an in-memory state store, along with various frontend components.
Key Changes:
Backend (API routes /api/stopwatch/*, utility web/app/utils/stopwatchState.ts):
Implemented SSE stream (/stream) for broadcasting state updates.
Created control endpoint (/control) for start/pause/reset/add_time actions with authorization.
Uses an in-memory Map (stopwatchState.ts) for state management per assessmentId.
Employs globalThis for state consistency in development.