Throw meaningful exceptions in run()

[whotwagner]

Currently I have the following error log:

[2026-02-23 12:14:22,189] ERROR detectors.RandomDetector.f07f2ba3d1d8564397e53a42e328ab12: Engine error during process: -1
Traceback (most recent call last):
  File "/app/src/service/features/engine.py", line 187, in _run_loop
    out = self.processor.process(raw)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/src/service/core.py", line 173, in process
    return self.library_component.process(raw_message)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/detectmatelibrary/common/core.py", line 117, in process
    return_schema = self.run(input_=data_buffered, output_=output_)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/detectmatelibrary/common/detector.py", line 110, in run
    if (anomaly_detected := self.detect(input_=input_, output_=output_)):
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/detectmatelibrary/detectors/random_detector.py", line 45, in detect
    event_config = self.config.events[input_["EventID"]]
                   ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
KeyError: -1

Even though this occured due to a misconfiguration, we should handle exceptions gracefully. in the service (service/features/engine.py line 187) this error is caught as a generall "Exception". I strongly believe that we should catch this error first in the library(detectmatelibrary/common/core.py line 118) and raise custom exceptions so that the service can distinguish and print meaningful error-messages for the user.