Kl/scrum 147 fix timetable integration bugs

[kevin-lann]

Description

SCRUM-147
SCRUM-152

• Fixed semester change bug
• Disabled manual flow checkbox after user generates timetable. This prevents user from trying to do manual flow while still in generate flow and provides better seperation of the two flows.

Type of change

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings

[Austin-X]

Looks good, I tested it out and it works for me.

[thomasyzy7]

LGTM

[minhhaitran08]

The issue has been fixed for table that I created for courses in Winter 2026.

However If I created a table for Fall 2025 and later update its courses to Winter 2026, the issue appear again.