Submit Score accepts empty form — blank scores saved to the system

[Kapsik89]

Steps to reproduce:

1. Log in as a judge (tester5 or tester9)
2. Open a Score Card for any team
3. Leave all fields empty
4. Click "Submit Score"

Expected behavior:
The form should not submit with empty fields. At minimum, the feedback field should be required. A validation message should be displayed prompting the judge to fill in the required fields before submitting.

Actual behavior:
The form submits successfully — the server returns HTTP 200 and the score status changes to "Submitted" despite all fields being empty. Blank scores are silently saved to the system with zero content.