Introduces Occlusion masks table and related endpoints

[fe51]

TO REVIEW AFTER #531 (introducing poses)

This PR to address #524  which is part of the planned changes to the data model

It introduces the following modifications

• Add table occlusion_masks in model
• Add occlusion_masks schema & crud
• Add occlusion_masks CRUD endpoint
• Updates poses endpoints adding occlusion mask listing related to a pose
• Update tests
• Update db diagram

note

• occlusion mask read endpoint is permissive endpoint on (as long as authentified on the api)

What is missing (to be discussed of to handle in another PR)

• Alembic migrations
• Client updates -> will be done later
• Client tests (struggled to be properly run locally)

Happy to discuss it

[codecov]

Codecov Report

❌ Patch coverage is 95.74468% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.03%. Comparing base (9cba4af) to head (8cf3d46).

Files with missing lines	Patch %	Lines
src/app/api/api_v1/endpoints/poses.py	91.11%	4 Missing ⚠️
src/app/api/api_v1/endpoints/occlusion_masks.py	95.83%	2 Missing ⚠️
src/app/api/api_v1/endpoints/cameras.py	91.66%	1 Missing ⚠️
src/app/crud/crud_occlusion_mask.py	92.30%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #533      +/-   ##
==========================================
+ Coverage   84.07%   85.03%   +0.96%     
==========================================
  Files          39       42       +3     
  Lines        1212     1310      +98     
==========================================
+ Hits         1019     1114      +95     
- Misses        193      196       +3     

Flag	Coverage Δ
backend	85.03% <95.74%> (+1.63%)	⬆️
client	?

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