[BUG] TAs can't modify grades

[laneystrange]

For manually-graded components of an assignment, a TA will assign a score, but if they make a mistake and they are not able to fix it. Instructors are able to edit/delete scores.

To Reproduce
Steps to reproduce the behavior:

1. Go to CS2100 Spring 2026 https://app.pawtograder.com/course/503, logged in as a TA.
2. Click on any manually-graded assignment (e.g., HW1 Codewalk), click on a "check" to assign points, click on "compelte review"
3. Return to same submission, wanting to un-check a box or check a different box.
4. Cannot cange the student's grade

Expected behavior
when logged in as an instructor, the correct behavior happens. after assigning a score to a student in the rubric, clicking "complete review", and coming back to it later... three dots appear on the right-hand side with options to edit or delete current score.

Workarounds
Current workaround is for TAs to email instructors and fix mistakes. This is not (1) not sustainable for the whole semester, and (2) will mean some mistakes don't get fixed, because TAs have to surface them to profs instead of quietly fixing them.

Screenshots
TA view (can't edit grade, no dots on the right-hand side)

Instructor view (same submission, same student, can edit if needed)

Pawtograder Build:
Please share the build number of the Pawtograder app when you experienced the problem. Find this by clicking on the support life ring at top, and copy the text "Build: XXXXXX".

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.