[SYSTEMDS-3385] Add Integrated Federated Frontend UI - for testing

[j143]

• Implemented mini ORM and added jobs functionality
• Frontend integration of entities CRUD + real-time metrics monitoring
• Added frontend tests + front- and backend README documentation
• Implemented dashboard traffic and worker component visualizations
• Event timeline

[j143]

cc @MKehayov : Can you verify the changes are correct

also, feel free to add commit description here.

[MKehayov]

@j143 I have tested it locally and it behaves correctly. I don't think there is anything else for me to add to the description so I think we can merge it in, the way it is.