Dev bilayers

[TorecLuik]

This pull request introduces several improvements and fixes across the Slurm workflow scripts, focusing on parameter type handling, error handling, and robustness. It also adds a new admin-only script for executing safe Slurm commands via OMERO. The most important changes are grouped below:

Parameter Type Handling and Workflow Descriptor Improvements:

• Replaces usage of convert_cytype_to_omtype with convert_param_type_to_omtype and consistently reads the parameter type from the type key instead of cytype in workflow parameter processing in SLURM_CellPose_Segmentation.py, SLURM_Run_Workflow.py, and SLURM_Run_Workflow_Batched.py. This improves compatibility with updated parameter schemas. [1] [2] [3]
• Updates workflow descriptor fetching to use generic_descriptor_from_github instead of pull_descriptor_from_github, and consistently accesses descriptor fields, improving maintainability and reducing ambiguity. [1] [2]

Robustness and Error Handling:

• Adds a pre-flight check in run_workflow to verify that the job script exists on the Slurm cluster before submitting a workflow, providing a clear error if the script is missing.
• Improves job status polling by initializing the job status dictionary before querying and logging transient errors as warnings instead of failing the workflow immediately, making job monitoring more resilient.
• Ensures all workflow parameters from other workflows are marked as optional, preventing them from blocking execution if not provided.

Bug Fixes:

• Fixes a bug in _SLURM_Image_Transfer.py where splitting the target filename for zipping now correctly handles filenames with multiple periods by using rsplit(".", 1).

New Admin Script:

• Adds admin/Example_Minimal_Slurm_Script.py, a secure admin-only OMERO script for running selected Slurm or Linux commands on the cluster. It includes comprehensive safety checks to block dangerous commands, detailed logging, and user/admin validation to ensure only authorized actions are performed.