Webhook handler always logs contextual information.

[blkt]

Summary

This change makes uniform use of details stored in ctx when writing logs in the webhook handler. Additionally, it also moves watermill message UUID logging key from "event" to "message_uuid" to use the same one as watermill.

Change Type

• Bug fix (resolves an issue without affecting existing features)
• Feature (adds new functionality without breaking changes)
• Breaking change (may impact existing functionalities or require documentation updates)
• Documentation (updates or additions to documentation)
• Refactoring or test improvements (no bug fixes or new functionality)

Testing

• make lint
• local execution

Review Checklist:

• Reviewed my own code for quality and clarity.
• Added comments to complex or tricky code sections.
• Updated any affected documentation.
• Included tests that validate the fix or feature.
• Checked that related changes are merged.

[coveralls]

coverage: 52.404% (+0.03%) from 52.377%
when pulling 8fa5219 on webhook-logs-enhancements
into 2934f33 on main.