docs: Document Contact change log CSV export feature

[promptless-for-oss]

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Documents the Contact change log CSV export feature, addressing a documentation gap revealed by PR #15994 which fixed a mislabeled column header in this export.

Changes

contacts/manage_contacts.rst

• New subsection: Exporting the change log - Added under the History section documenting:
  • The ability to export a Contact's change log to CSV for offline analysis or record-keeping
  • Information about the CSV columns (timestamp, action, details, user/source)
  • How to access the export via the dropdown menu on the Contact detail page

Context

PR #15994 fixed a bug where the CSV header column was labeled eventName when it should have been userSourceName to accurately reflect the data in that column. The documentation correctly describes this column conceptually as "the user or source that triggered the change" without referencing the technical header name. This PR has now been merged.

Trigger Events

• mautic/mautic PR #15994: Fix incorrect CSV header "eventName" in contact change log export
• mautic/mautic PR #15994: Fix incorrect CSV header "eventName" in contact change log export

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[promptless-for-oss]

PR #15994 fixes a mislabeled CSV header in the Contact change log export (eventName → userSourceName). This documentation addition addresses the gap revealed by that fix - the export feature was previously undocumented. File: app/bundles/LeadBundle/Controller/AuditlogController.php

Source: mautic/mautic#15994

[adiati98]

@promptless-for-oss, there are many unrelated old commits. Please rebase this to 7.1.

[promptless-for-oss]

Thanks @adiati98! I've rebased this onto the latest 7.1 — the branch now has a single commit and the PR diff shows only the intended change to docs/contacts/manage_contacts.rst (the new "Exporting the change log" subsection). The unrelated old commits are gone.

[adiati98]

@promptless-for-oss please address the suggestions.

[promptless-for-oss]

Thanks @adiati98 — both suggestions have been applied and pushed to the branch.

• Updated the change log export description to: "You can export the Contact's change log to CSV for offline analysis or record-keeping. The CSV includes columns for each event's timestamp, action, details, and the User or source that triggered the change."
• Updated the export step to your wording, wrapped in .. vale off / .. vale on as suggested.

The change is scoped to docs/contacts/manage_contacts.rst. Ready for another look.