feat!: add events for provider messages

[mpoke]

Description

Closes: #XXXX

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Author Checklist

All items are required. Please add a note to the item if the item is not applicable and please add links to any relevant follow up issues.

I have...

• [ ] Included the correct type prefix in the PR title
• [ ] Added ! to the type prefix if the change is state-machine breaking
• [ ] Confirmed this PR does not introduce changes requiring state migrations, OR migration code has been added to consumer and/or provider modules
• [ ] Targeted the correct branch (see PR Targeting)
• [ ] Provided a link to the relevant issue or specification
• [ ] Followed the guidelines for building SDK modules
• [ ] Included the necessary unit and integration tests
• [ ] Added a changelog entry to CHANGELOG.md
• [ ] Included comments for documenting Go code
• [ ] Updated the relevant documentation or specification
• [ ] Reviewed "Files changed" and left comments if necessary
• [ ] Confirmed all CI checks have passed
• [ ] If this PR is library API breaking, bump the go.mod version string of the repo, and follow through on a new major release

Reviewers Checklist

All items are required. Please add a note if the item is not applicable and please add your handle next to the items reviewed if you only reviewed selected items.

I have...

• [ ] confirmed the correct type prefix in the PR title
• [ ] confirmed ! the type prefix if the change is state-machine breaking
• [ ] confirmed this PR does not introduce changes requiring state migrations, OR confirmed migration code has been added to consumer and/or provider modules
• [ ] confirmed all author checklist items have been addressed
• [ ] reviewed state machine logic
• [ ] reviewed API design and naming
• [ ] reviewed documentation is accurate
• [ ] reviewed tests and test coverage