Executor: incorporate hotfixes into dev

[johncmerfeld]

Incorporate #17 and #19 back into the main code history

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Original:

This makes triaging earthmover_run errors much easier. Right now all the app receives is a Python error caused by the empty raise (which apparently doesn't work in a finally block). Now it receives the entire Earthmover logs as its "stacktrace", e.g.

Traceback (most recent call last):
  File "/executor/executor/executor.py", line 107, in execute
    self.earthmover_run()
  File "/executor/executor/executor.py", line 402, in earthmover_run
    raise Exception(em.stderr)
Exception: 2026-02-04 23:24:08.585 earthmover INFO starting...
2026-02-04 23:24:08.741 earthmover INFO skipping hashing and run-logging (no `state_file` defined in config)
2026-02-04 23:24:08.741 earthmover INFO creating output directory /executor/output
2026-02-04 23:24:51.360 earthmover ERROR (near line 64 of `/executor/bundles/packages/student_id_wrapper/packages/STAAR_Interim/earthmover.yaml` in `$transformations.staar_interim_student_assessment.operations:rename_columns`)  column ADMINISTRATION TYPE not present in the dataset)
Traceback (most recent call last):
  File "/usr/local/lib/python3.12/site-packages/earthmover/__main__.py", line 256, in main
    em.generate(selector=args.selector)
  File "/usr/local/lib/python3.12/site-packages/earthmover/earthmover.py", line 378, in generate
    self.execute(active_graph)
  File "/usr/local/lib/python3.12/site-packages/earthmover/earthmover.py", line 275, in execute
    node.execute()
  File "/usr/local/lib/python3.12/site-packages/earthmover/nodes/transformation.py", line 48, in execute
    self.data = operation.execute(self.data, data_mapping=self.upstream_sources)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/earthmover/operations/column.py", line 188, in execute
    self.error_handler.throw(
  File "/usr/local/lib/python3.12/site-packages/earthmover/error_handler.py", line 117, in throw
    raise Exception(
Exception: (near line 64 of `/executor/bundles/packages/student_id_wrapper/packages/STAAR_Interim/earthmover.yaml` in `$transformations.staar_interim_student_assessment.operations:rename_columns`)  column ADMINISTRATION TYPE not present in the dataset)

Tested in my dev environment