fix: catch scheduler tick rejections

[yahorbarkouski]

Summary

• catch and log rejected scheduler tick promises in the scheduler interval callback
• add a regression test that forces a scheduled capture failure and verifies it is logged
• confirm issue Scheduler tick errors cause unhandled promise rejections #6 is valid: startScheduler() previously invoked tick() without handling the returned promise

Testing

• npm test -- electron/main/features/scheduler/tests/SchedulerService.test.ts
• npx biome check electron/main/features/scheduler/SchedulerService.ts electron/main/features/scheduler/tests/SchedulerService.test.ts
• npm run typecheck

Closes #6

[github-actions]

🎉 This PR is included in version 1.30.0 🎉

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