Several small bugfix

[gpetretto]

Fix for several bugs identified by AI. Mostly harmless (text format or in functions not used anymore) or with impact only in limited corner cases.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 57.69231% with 33 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.95%. Comparing base (d74e892) to head (306288d).

Files with missing lines	Patch %	Lines
src/jobflow_remote/utils/db.py	42.85%	10 Missing and 2 partials ⚠️
src/jobflow_remote/cli/utils.py	57.69%	6 Missing and 5 partials ⚠️
src/jobflow_remote/remote/data.py	0.00%	2 Missing and 1 partial ⚠️
src/jobflow_remote/cli/admin.py	60.00%	2 Missing ⚠️
src/jobflow_remote/jobs/daemon.py	33.33%	1 Missing and 1 partial ⚠️
src/jobflow_remote/utils/remote.py	66.66%	1 Missing and 1 partial ⚠️
src/jobflow_remote/jobs/jobcontroller.py	87.50%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #494      +/-   ##
===========================================
- Coverage    76.01%   75.95%   -0.06%     
===========================================
  Files           52       52              
  Lines         8204     8221      +17     
  Branches      1361     1366       +5     
===========================================
+ Hits          6236     6244       +8     
- Misses        1524     1533       +9     
  Partials       444      444              

Flag	Coverage Δ
all_local_tests	75.75% <57.69%> (-0.06%)	⬇️
all_tests	75.95% <57.69%> (-0.06%)	⬇️
db_tests	71.54% <55.12%> (-0.06%)	⬇️
integration_local_tests	45.68% <6.41%> (-0.08%)	⬇️
integration_remote_tests	26.03% <2.56%> (-0.03%)	⬇️
integration_tests	46.55% <6.41%> (-0.08%)	⬇️
unit_tests	27.16% <2.56%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/jobflow_remote/cli/batch.py	96.29% <ø> (ø)
src/jobflow_remote/cli/flow.py	76.27% <100.00%> (+0.46%)	⬆️
src/jobflow_remote/cli/job.py	85.18% <100.00%> (ø)
src/jobflow_remote/cli/runner.py	76.61% <ø> (ø)
src/jobflow_remote/jobs/run.py	74.19% <ø> (ø)
src/jobflow_remote/jobs/runner.py	78.96% <100.00%> (ø)
src/jobflow_remote/jobs/jobcontroller.py	81.63% <87.50%> (ø)
src/jobflow_remote/cli/admin.py	89.72% <60.00%> (+0.76%)	⬆️
src/jobflow_remote/jobs/daemon.py	67.42% <33.33%> (+0.20%)	⬆️
src/jobflow_remote/utils/remote.py	81.25% <66.66%> (+2.91%)	⬆️
... and 3 more

... and 1 file with indirect coverage changes

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