refactor: get all daq job classes dynamically

- might be useful when this project gets embedded in other projects

src/daq/jobs/healthcheck.py

@@ -70,15 +70,15 @@ class DAQJobHealthcheck(DAQJob):
     def __init__(self, config: DAQJobHealthcheckConfig, **kwargs):
         super().__init__(config, **kwargs)
 
-        from daq.types import ALL_DAQ_JOBS, get_daq_job_class
+        from daq.types import get_all_daq_job_types, get_daq_job_class
 
         self._get_daq_job_class = get_daq_job_class
         self._current_stats = {}
 
         self._healthcheck_stats = []
 
         if config.enable_alerts_on_restart:
-            for daq_job_type_class in ALL_DAQ_JOBS:
+            for daq_job_type_class in get_all_daq_job_types():
                 self._healthcheck_stats.append(
                     HealthcheckStatsItem(
                         alert_info=DAQAlertInfo(

src/daq/types.py

@@ -14,7 +14,9 @@
 from daq.jobs.test_job import DAQJobTest
 from utils.subclasses import all_subclasses
 
-ALL_DAQ_JOBS = all_subclasses(DAQJob)
+
+def get_all_daq_job_types():
+    return all_subclasses(DAQJob)
 
 
 DAQ_JOB_TYPE_TO_CLASS: dict[str, type[DAQJob]] = {
@@ -42,7 +44,7 @@ def get_daq_job_class(
                 f"DAQ job type '{daq_job_type}' is deprecated, please use '{daq_job_class.__name__}' instead"
             )
     else:
-        for daq_job in ALL_DAQ_JOBS:
+        for daq_job in get_all_daq_job_types():
             if daq_job.__name__ == daq_job_type:
                 daq_job_class = daq_job
     return daq_job_class