WIP: ✨ Add Notifications service implementation

[giancarloromeo]

What do these changes do?

This PR adds a first real and concrete implementation of the Notification service.

Related issue/s

• relates to ITISFoundation/private-issues#227
• resolves ITISFoundation/private-issues#228
• fixes notifications service is failing fast and is rolledback when database version is not (yet) migrated #7958
• depends on Evolve TaskContext data structure to a TaskFilter #8071

How to test

Dev-ops

[codecov]

Codecov Report

❌ Patch coverage is 83.00000% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.06%. Comparing base (35e7048) to head (919dfee).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8011      +/-   ##
==========================================
+ Coverage   88.03%   88.06%   +0.02%     
==========================================
  Files        1919     1860      -59     
  Lines       74341    71804    -2537     
  Branches     1305     1305              
==========================================
- Hits        65449    63235    -2214     
+ Misses       8499     8175     -324     
- Partials      393      394       +1     

Flag	Coverage Δ
integrationtests	64.21% <ø> (-0.02%)	⬇️
unittests	86.66% <83.00%> (-0.02%)	⬇️

Components	Coverage Δ
pkg_aws_library	93.93% <ø> (ø)
pkg_celery_library	87.37% <100.00%> (ø)
pkg_dask_task_models_library	79.62% <ø> (ø)
pkg_models_library	93.12% <100.00%> (+0.07%)	⬆️
pkg_notifications_library	85.53% <92.30%> (+0.26%)	⬆️
pkg_postgres_database	88.02% <ø> (ø)
pkg_service_integration	70.19% <ø> (ø)
pkg_service_library	72.23% <0.00%> (-0.12%)	⬇️
pkg_settings_library	90.17% <ø> (ø)
pkg_simcore_sdk	85.03% <ø> (ø)
agent	93.53% <ø> (ø)
api_server	92.84% <ø> (ø)
autoscaling	95.89% <ø> (ø)
catalog	92.34% <ø> (ø)
clusters_keeper	99.13% <ø> (ø)
dask_sidecar	92.15% <ø> (+0.33%)	⬆️
datcore_adapter	97.94% <ø> (ø)
director	75.81% <ø> (ø)
director_v2	90.89% <ø> (-0.03%)	⬇️
dynamic_scheduler	96.27% <ø> (ø)
dynamic_sidecar	90.10% <ø> (ø)
efs_guardian	89.62% <ø> (ø)
invitations	91.44% <ø> (ø)
payments	92.61% <ø> (ø)
resource_usage_tracker	92.13% <ø> (+0.21%)	⬆️
storage	∅ <ø> (∅)
webclient	∅ <ø> (∅)
webserver	88.11% <ø> (-0.03%)	⬇️

---

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[sonarqubecloud]

Quality Gate passed

Issues
6 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[mergify]

🧪 CI Insights

Here's what we observed from your CI run for 919dfee.

❌ Failed Jobs

Pipeline	Job	Health on base branch	Retries	🔍 CI Insights	📄 Logs
CI	system-tests		0	View	View
	unit-tests		0	View	View
PR CI	check OAS' are up to date		0	View	View

[sonarqubecloud]

Quality Gate passed

Issues
6 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud