feat(api): Allow to filter the API by app and object

[nickvergessen]

Usecases

• Reminder section on Talk dashboard can finally show the triggered reminders instead of the pending ones
• Potentially feat(ui): group notifications by app with optional filter tabs #2960

🤖 AI (if applicable)

• The content of this PR was partly or fully generated using AI

[github-actions]

🐢 Performance warning.
It looks like the query count of the integration tests increased with this PR.
Database query count is now 9158 was 9041 (+1.29%)
Please check your code again. If you added a new test this can be expected and the base value in tests/Integration/base-query-count.txt can be increased.

[github-actions]

🐢 Performance warning.
It looks like the query count of the integration tests increased with this PR.
Database query count is now 9158 was 9041 (+1.29%)
Please check your code again. If you added a new test this can be expected and the base value in tests/Integration/base-query-count.txt can be increased.