feat: funder list stored locally

[evvvritt]

• minimal implementation (using z.any() / no type checking)
• clears stored if local is corrupted or doesn't match state (cheap check)

should we remove the "changes may not be saved" page reload popup guard?
(if so, where is that?)

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[evvvritt]

ah, the e2e fails because we can't save the stream value as a bigint (fails when storedWriteable tries to stringify it)

i guess an idea is to just store the dripList as a storedWriteable copy of the steppers writeable state? and load it if it's present?
(refresh loads at the drip list editor anyways)

or is it important to save the stream inputs?

[evvvritt]

@efstajas wdyt^?