Talk with the detailer.
Was ANY water or liquid used on the engine or in the engine compartment during the detail process?
The blown fuse is somewhat unusual.
Keep us posted.
Also hold key to start in neutral WITHOUT first pressing the clutch.
Then while holding key to start, depress clutch pedal.
Observe voltage looking for needle deflection as clutch is fully depressed.
Report.
Just need to narrow it down a bit.
If we can rule out clutch switch/wire issues, we know where it points.
You will get it.
Marty