refactor: replace @quixo3/prisma-session-store with custom session store implementation

- Removed dependency on @quixo3/prisma-session-store from package.json.
- Updated server.ts to use CustomPrismaSessionStore for session management.
- Added new sessionStore.ts file implementing CustomPrismaSessionStore with methods for session handling (get, set, destroy, touch, all, length, clear).
- Implemented automatic cleanup of expired sessions with a configurable check period.

Author: Rabithua