[dev-sci] Integrate rdas_ua2u tool into workflow for JEDI analysis restart preparation

[delippi]

DESCRIPTION OF CHANGES:

This PR adds workflow logic to automatically run the new rdas_ua2u utility after JEDI analysis completion, converting analysis from (ua, va) to (u, v) for model restart compatibility. GSI still runs in parallel when using DO_JEDIVAR=YES.

Key Updates

• Workflow integration
  • Added rdas_ua2u.x execution step in exrrfs_analysis_jedi.sh following JEDI run.
  • Performs conversion of analysis from from ua/va to u/v
  • Adds post-processing for type conversion (double -> float), compression, and time-dimension fixes.
  • Injects missing DZ field from background and prepares final restart files for model use.
  • Continue to run GSI in parallel with JEDI by adding a temporary INPUT.gsi or INPUT.jedi directory.
• Template & config enhancements
  • Updated rdas-atmosphere-templates-fv3_c13.yaml to map additional state variables
  • Added DA_SYSTEM to choose which system to use analysis restarts to initialize the model (copies either INPUT.jedi or INPUT.gsi into INPUT)
  • Added DA_SYSTEM_COLD option for defining cold-start DA system behavior.
• Dependency and control flow
  • Modified XML dependencies to better coordinate GSI and JEDI spinup/prod tasks
  • Added logic to exrrfs_update_lbc_soil.sh (postanl task) to correctly handle cold-start DA system copying (INPUT.jedi or INPUT.gsi)
  • Updated Externals.cfg to pull the latest RDASApp hash containing the rdas_ua2u implementation.

DEPENDENCIES

• Update ctests state variables to match FV3 restart requirements RDASApp#473

TESTS CONDUCTED:

Tested in retro on WCOSS2. Ensured that model restarts from INPUT.jedi --> INPUT in a few DA cycles.

Machines/Platforms:

• WCOSS2
  • Cactus/Dogwood
  • Acorn
• RDHPCS
  • Hera
  • Jet
  • Orion
  • Hercules

Test cases:

• Engineering tests
  • Non-DA engineering test
  • DA engineering test
    • Retro
    • Ensemble
    • Parallel
• RRFS fire weather
• RRFS_A:
• RRFS_B:
• RTMA:
• Others:

[delippi]

After the updates from NOAA-EMC/RDASApp#473, I'm going to do fresh rebuild of the whole system and restart my retro to double check I have everything needed to restart the forecast from jedi analysis.

[MatthewPyle-NOAA]

Looks good to my non-DA eyes...

[ShunLiu-NOAA]

Sam is taking leave today. Ming and Ting are added as reviewer for this PR.

[delippi]

I just wanted to highlight this line in case its overlooked. I wasn't able to use the sfc_data.nc file from jedi yet. I need to look into this a bit more. As a temporary solution, I was able to use the GSI's sfc file. I've made it clear that it is temporary solution and exactly what I'm doing here.