refactor: do not store events/attributes/objects in sql, use opensearch

[righel]

this is a breaking change.
do not store events, objects, attributes, attribute tags, event tags, object references in sql. use opensearch only.

[codecov]

Codecov Report

❌ Patch coverage is 71.50206% with 277 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.28%. Comparing base (8d0dd53) to head (086198c).
⚠️ Report is 39 commits behind head on main.

Files with missing lines	Patch %	Lines
api/app/repositories/objects.py	60.66%	83 Missing ⚠️
api/app/worker/tasks.py	15.38%	66 Missing ⚠️
api/app/repositories/events.py	86.09%	26 Missing ⚠️
api/app/repositories/attributes.py	79.76%	17 Missing ⚠️
api/app/repositories/notifications.py	14.28%	12 Missing ⚠️
api/app/repositories/tags.py	76.92%	12 Missing ⚠️
api/app/schemas/object_reference.py	50.00%	10 Missing ⚠️
api/app/repositories/feeds.py	0.00%	9 Missing ⚠️
api/app/repositories/object_references.py	62.50%	9 Missing ⚠️
api/app/schemas/attribute.py	43.75%	9 Missing ⚠️
... and 8 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #239      +/-   ##
==========================================
+ Coverage   74.32%   75.28%   +0.96%     
==========================================
  Files         145      142       -3     
  Lines       10246    10114     -132     
==========================================
- Hits         7615     7614       -1     
+ Misses       2631     2500     -131     

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