Add listening endpoints

[ReinderVosDeWael]

• Resolves Task: Remove on-the-fly database entry population #14
• Resolves Task: Listening Endpoints #3

[codecov-commenter]

Codecov Report

Attention: 18 lines in your changes are missing coverage. Please review.

Comparison is base (3f26061) 97.22% compared to head (3068602) 94.72%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
src/linguaweb_api/routers/admin/controller.py	86.27%	7 Missing ⚠️
src/linguaweb_api/routers/words/controller.py	86.48%	5 Missing ⚠️
src/linguaweb_api/microservices/openai.py	80.95%	4 Missing ⚠️
src/linguaweb_api/core/models.py	90.90%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #22      +/-   ##
==========================================
- Coverage   97.22%   94.72%   -2.50%     
==========================================
  Files          13       17       +4     
  Lines         288      417     +129     
==========================================
+ Hits          280      395     +115     
- Misses          8       22      +14     

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