merged BinaryService and FSOrganizer

[jstucke]

The BinaryService needs a DB interface to retrieve the file name. This...

• leads to unnecessary DB accesses, because most of the time the file name is actually not used
• this can lead to errors if there are multiple requests at once (because it is accessed from a threaded "intercom backend responder" and the DB session there is not thread safe)
• is kinda unnecessary anyway because in all cases where the file name is actually needed, we have access to a DB interface anyway and can simple use that to look it up

This PR removes DB access from BinaryService. There is now no real reason to have a separate "BinaryService" and "FSOrganizer" because they are closely related (the FSO stores files and the BS reads them), so we merge both and called the result "FileService".

[codecov-commenter]

Codecov Report

❌ Patch coverage is 96.38554% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.89%. Comparing base (a392b42) to head (0e4d608).

Files with missing lines	Patch %	Lines
...hitecture_detection/code/architecture_detection.py	60.00%	2 Missing ⚠️
src/test/unit/conftest.py	71.42%	2 Missing ⚠️
src/scheduler/analysis/scheduler.py	66.66%	1 Missing ⚠️
src/storage/file_service.py	97.82%	1 Missing ⚠️
...st/integration/intercom/test_task_communication.py	95.65%	1 Missing ⚠️
src/test/unit/web_interface/test_app_download.py	83.33%	1 Missing ⚠️
src/web_interface/components/analysis_routes.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1363      +/-   ##
==========================================
- Coverage   91.90%   91.89%   -0.02%     
==========================================
  Files         372      370       -2     
  Lines       20955    20948       -7     
==========================================
- Hits        19259    19250       -9     
- Misses       1696     1698       +2     

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