Disable Azure tests and fix open ai tests

[ekzhu]

• Disable Azure tests until the settings are updated
• Switch models to prioritize gpt-4o-mini
• Fix Postgres adaptor for Retrieval Chat -- format floats as digits not scientific notation.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 29.81%. Comparing base (38cce47) to head (00941b0).
Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3587      +/-   ##
==========================================
- Coverage   30.49%   29.81%   -0.68%     
==========================================
  Files         113      114       +1     
  Lines       12284    12462     +178     
  Branches     2602     2847     +245     
==========================================
- Hits         3746     3716      -30     
- Misses       8210     8398     +188     
- Partials      328      348      +20     

Flag	Coverage Δ
unittests	29.81% <ø> (-0.67%)	⬇️

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