feat: setup initial support for local login (#48)

[holtgrewe]

No description provided.

[codecov]

Codecov Report

Merging #82 (8581b5c) into main (863c046) will decrease coverage by 2.47%.
The diff coverage is 61.01%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #82      +/-   ##
==========================================
- Coverage   78.81%   76.35%   -2.47%     
==========================================
  Files          74       82       +8     
  Lines        2011     2182     +171     
  Branches      528      546      +18     
==========================================
+ Hits         1585     1666      +81     
- Misses        394      467      +73     
- Partials       32       49      +17     

Files	Coverage Δ
backend/app/api/api_v1/api.py	100.00% <100.00%> (ø)
backend/app/api/api_v1/endpoints/adminmsgs.py	88.88% <100.00%> (-11.12%)	⬇️
backend/app/api/internal/api.py	100.00% <100.00%> (ø)
backend/app/api/internal/endpoints/proxy.py	100.00% <100.00%> (ø)
backend/app/core/config.py	98.27% <100.00%> (+0.19%)	⬆️
backend/app/db/base.py	100.00% <ø> (ø)
backend/app/db/session.py	100.00% <100.00%> (ø)
backend/app/main.py	95.65% <100.00%> (+0.91%)	⬆️
backend/app/models/__init__.py	100.00% <100.00%> (ø)
backend/app/models/adminmsg.py	100.00% <100.00%> (ø)
... and 45 more