Add babs init --shared-group <GROUP>

[tien-tong]

PR

1. Add babs init --shared-group <GROUP>

2. Also patch this edge case:

babs submit intentionally writes job_submit.csv once before submission with only pre-submit columns (sub_id, task_id), then rewrites it with job_id after sbatch.

If submit is interrupted between those two writes, later calls read an intermediate job_submit.csv that has no job_id, and get_latest_submitted_jobs_df() crashes with error like this:

Traceback (most recent call last):
  File "/ceph/projects/sattertt/pennlinc-parcc/software/miniforge3/envs/babs/bin/babs", line 6, in <module>
    sys.exit(_main())
             ^^^^^^^
  File "/ceph/projects/sattertt/pennlinc-parcc/software/babs/babs/cli.py", line 766, in _main
    options.func(**args)
  File "/ceph/projects/sattertt/pennlinc-parcc/software/babs/babs/cli.py", line 434, in babs_submit_main
    babs_proj.babs_submit(
  File "/ceph/projects/sattertt/pennlinc-parcc/software/babs/babs/interaction.py", line 36, in babs_submit
    currently_running_df = self.get_currently_running_jobs_df()
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/ceph/projects/sattertt/pennlinc-parcc/software/babs/babs/base.py", line 486, in get_currently_running_jobs_df
    last_submitted_jobs_df = self.get_latest_submitted_jobs_df()
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/ceph/projects/sattertt/pennlinc-parcc/software/babs/babs/base.py", line 451, in get_latest_submitted_jobs_df
    df[column_name] = df[column_name].astype(status_dtypes[column_name])
                      ~~^^^^^^^^^^^^^
  File "/ceph/projects/sattertt/pennlinc-parcc/software/miniforge3/envs/babs/lib/python3.11/site-packages/pandas/core/frame.py", line 4378, in __getitem__
    indexer = self.columns.get_loc(key)
              ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/ceph/projects/sattertt/pennlinc-parcc/software/miniforge3/envs/babs/lib/python3.11/site-packages/pandas/core/indexes/base.py", line 3648, in get_loc
    raise KeyError(key) from err
KeyError: 'job_id'

--->

• Kept get_currently_running_jobs_df() behavior the same as before, no change in babs status
• Added a defensive fix in get_latest_submitted_jobs_df() so if job_submit.csv is missing job_id (interrupted pre-submit write), it no longer crashes with KeyError.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 66.66667% with 36 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.85%. Comparing base (912ef8a) to head (5ac47ec).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
babs/base.py	60.71%	20 Missing and 13 partials ⚠️
babs/bootstrap.py	80.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #368      +/-   ##
==========================================
- Coverage   79.55%   78.85%   -0.70%     
==========================================
  Files          17       17              
  Lines        1956     2048      +92     
  Branches      331      357      +26     
==========================================
+ Hits         1556     1615      +59     
- Misses        279      299      +20     
- Partials      121      134      +13     

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