Cache requested calibration format outside of state store

[mcm001]

Description

On main, this pop-up lists the wrong resolution. The index in the state is getting updated out from underneath us. The easiest solution I have is to just cache this number.

Not sure of a great way to test this, since it requires the backend taking calibration snapshots

Meta

Merge checklist:

• Pull Request title is short, imperative summary of proposed changes
• The description documents the what and why
• 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 settings back to v2025.3.2
• 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

[spacey-sooty]

Makes sense, love the testing screenshots