Feature: Configurable grade components with automatic grade calculation

[krusche]

Description

Supervisors currently submit a single final grade for a thesis. To improve transparency and consistency, supervisors should be able to break down the grade into weighted components that are automatically combined into a suggested overall grade.

Example

Component	Weight	Grade
Project	60%	2.0
Written Thesis	20%	2.3
Presentation	20%	1.7
Bonus	—	-0.3

Calculated Grade: 2.0 x 0.6 + 2.3 x 0.2 + 1.7 x 0.2 - 0.3 = 1.7

The supervisor can still adjust the final submitted grade (e.g. for rounding or discretionary deviations).

Requirements

Grading scheme configuration

• Research groups can define a default grading scheme (list of component names, weights, and optional bonus components)
• The default scheme is pre-filled when a supervisor starts grading a thesis
• Supervisors can override component names, weights, or add/remove components for individual theses if needed

Grade entry and calculation

• The UI presents the configured components with input fields for individual grades
• The weighted overall grade is calculated and displayed in real time
• A bonus component (flat adjustment, not weighted) should be supported
• The final grade field is pre-filled with the calculated result but remains editable

Validation

• Component weights must sum to 100% (excluding bonus)
• Individual grades must be within the valid range (1.0-5.0)
• Warn if the final submitted grade deviates significantly from the calculated grade

Non-goals

• Complex multi-level grading rubrics or per-criterion feedback, this should stay lightweight
• Enforcing that supervisors use the calculated grade (deviation is explicitly allowed)