Raise minimum images for calibration to 100

[spacey-sooty]

Description

We can see on
https://mrcal.secretsauce.net/docs-2.0/tour-choreography.html that more images appear to always be better, but diminishing returns kick in around 100 images. This shouldn't be too time consuming as a minimum and should get users the best effort to quality ratio so I think to makes sense as the default.

Meta

Merge checklist:

• Pull Request title is short, imperative summary of proposed changes
• The description documents the what and why, including events that led to this PR
• If this PR changes behavior or adds a feature, user documentation is updated
• If this PR touches photon-serde, all messages have been regenerated and hashes have not changed unexpectedly
• If this PR touches configuration, this is backwards compatible with all settings going back to the previous seasons's last release (seasons end after champs ends)
• If this PR touches pipeline settings or anything related to data exchange, the frontend typing is updated
• If this PR addresses a bug, a regression test for it is added
• If this PR adds a dependency, the license has been checked for compatibility and steps taken to follow it

The base branch was changed.

[mdurrani808]

This shouldn't be too time consuming

Is this true?

[samfreund]

This shouldn't be too time consuming

Is this true?

I've done like 200 in 10 minutes or so, assuming you have someone else to click the button that's about a picture every three seconds. For only 100, that's a picture every six seconds.

[spacey-sooty]

I quite comfortably did ~250 image calibrations in the pits at worlds in 2025 between matches so I don't see 100 being a huge barrier

[samfreund]

Some sort of bypass option may be useful