v0.3.0

Highlights

Adds ctis.instruments.OptikaInstrument, a CTIS instrument whose forward model is an optika LinearSystem, and moves the instrument interface to an electron-based measurement model.

New

• ctis.instruments.OptikaInstrument — forward/backward model backed by an optika.systems.LinearSystem, supplying channel-aware distortion, effective area, and vignetting via cached regridding weights.
• IdealInstrument gains quantum_yield and read_noise; image returns electrons, integrates once per readout, and adds read noise once.

Changed (breaking)

• image gains an uncertainty flag returning a NormalUncertainScalarArray; the standalone uncertainty property is removed. merit.mean_chi_squared now takes the uncertainty as an argument.
• backproject gains a unit argument to express the result in photon or energy units.
• regrid and the instrument volume weighting accept Doppler grids (normalized via .spectral_positional).

Requires

• optika ~= 2.1
• named-arrays ~= 2.4