Add multiple reaction

[AntoniaBerger]

This PR introduce a generalized reaction management system that allows multiple independent reaction types (liquid, solid, cross-phase) to coexist within a single unit operation and particle, enabling more flexible reaction modeling.

Key Changes

Core Infrastructure

• New ReactionSystem class manages dynamic reaction models across different phases (cross_phase, liquid, pore, solid) within a unified structure
• Phase-aware reaction organization with dedicated vectors for each phase type
• Centralized configuration, discretization, and memory management

Separate cross phase reactions and single phase reactions

• By default reactions are implemented as single phase reactions.
• New single phase MASS_ACTION_LAW
• Rename old MASS_ACTION_LAW to MASS_ACTION_LAW_CROSS_PHASE

Cell Kernel

• Updated BindingCellKernel.hpp to handle multiple simultaneous reaction types
• Integrated residual computation for:
  • Cross-phase reactions
  • Pure liquid-phase reactions
  • Pure solid-phase reactions
• Consistent Jacobian generation for all reaction types

Interface Details

New Parameters Introduced

• NREAC_LIQUID - Number of liquid phase reactions
• NREAC_CROSS_PHASE - Number of cross-phase reactions
• NREAC_SOLID - Number of solid phase reactions
• Drop for single phase reactions (MASS_ACTION_LAW and MICHAELIS_MENTEN) the _bulk description

Testing

• Fixed test suite validates:
  • Individual reaction types
  • Combined reaction scenarios
  • Cross-phase modifier effects
  • Jacobian accuracy (AD vs. analytic)
  • Two GRM tests fail in release mode but not in debug mode: this needs further investigation
  • Benchmark tests are covered in CADET-Varification (Add multiple reaction test CADET-Verification#57)

[jbreue16]

this is the continuation of #449 and #453, right? I think the PR title can be updated

[jbreue16]

This is so cool to have, very valuable work !

Seems like 10 crystallization tests are failing and I don't think this is solely due to CI shenanigans, since in that case it's always been just one or two that fail. Also, this PR changes reactions and crystallization is implemented as an reaction and specific care should be taken here with these tests.
@AntoniaBerger do you have an idea on what could be going wrong here? have you tested if its really just the CI thats failing us? You could e.g. run some of the tests defined in cadet-verification to double check if the changes actually broke crystallization

[AntoniaBerger]

this is the continuation of #449 and #453, right? I think the PR title can be updated

Yes, at some point I found my self rewriting it for every unit operation. I should change the title of the PR.

[AntoniaBerger]

have you tested if its really just the CI thats failing us? You could e.g. run some of the tests defined in cadet-verification to double check if the changes actually broke crystallization.

This is a great point! I will double check!

[AntoniaBerger]

All failing Crystallization tests are running in debug and release mode on my local computer. @jbreue16 can you reproduce this?