feat: Adds product analytics on most of the routes

[frgfm]

This PR introduces the following modifications:

• simplifies the storage interactions (bucket/s3 --> storage.py)
• adds a telemetry client
• adds event capture on most routes

Any feedback is welcome!

cf. #304

[blenzi]

Thanks for this nice addition @frgfm ! I believe the errors in the CI come from
from app.services import telemetry_client (not defined) vs from app.services.telemetry import telemetry_client.

I would suggest monitoring also the alert notifications, in order to remove that from the db, as you suggested in #304.

[blenzi]

Thanks a lot for these additions, @frgfm !

I have no experience with PostHog but if I understand well, it will not have access to our db. Therefore, to maximize the possibilities it offers, we probably need some more detailed, human-readable information about the events. This will be required when analyzing individual alerts, statistics per site / group, etc. So I added in a few places the suggestion to include device / site / group name, updated information, etc. What do you think ?

[codecov]

Codecov Report

Attention: 11 lines in your changes are missing coverage. Please review.

Comparison is base (cf11dc7) 94.95% compared to head (1759f71) 94.59%.

Files	Patch %	Lines
src/app/api/endpoints/media.py	72.22%	5 Missing ⚠️
src/app/services/telemetry.py	73.68%	5 Missing ⚠️
src/app/services/services.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #307      +/-   ##
==========================================
- Coverage   94.95%   94.59%   -0.36%     
==========================================
  Files          63       63              
  Lines        1505     1592      +87     
==========================================
+ Hits         1429     1506      +77     
- Misses         76       86      +10     

Flag	Coverage Δ
unittests	94.59% <91.91%> (-0.36%)	⬇️

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[frgfm]

So apart from "updated info" (feels like dumping the payload otherwise), I added everything that was immediately available (not requiring another DB operations)

[blenzi]

Thanks @frgfm ! Let's start using it asap and adjust the level of information if needed