Add a user context to all function calls and cc user on emails.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 61.53846% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 57.14%. Comparing base (b071bfb) to head (03b1c46). Report is 3 commits behind head on main.

Files	Patch %	Lines
sam/slack.py	0.00%	4 Missing :warning:
sam/tools.py	83.33%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #49 +/- ## ========================================== + Coverage 54.15% 57.14% +2.98% ========================================== Files 9 10 +1 Lines 325 357 +32 ========================================== + Hits 176 204 +28 - Misses 149 153 +4 ```

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