Refresh privacy request activity timeline display

[Kelsey-Ethyca]

Summary

Reworks the activity timeline on the privacy request detail page so the log reads as something a non-engineer can scan, rather than a list of raw dataset keys prefixed with `Fides:`.

• Each row now starts with an icon: integration logo (looked up by `connection_key`), user avatar (comments / manual tasks), or a system glyph (audit events, dataset graph events).
• Integration rows show the connection's configured display name; when no connection is found we humanize the snake_case key (`service_now_servicenow_itsm_api` → `Service now servicenow itsm api`).
• The `Fides:` author prefix is dropped — the icon now communicates that it's a system event. User-authored rows (comments, completed/skipped manual tasks) still surface the user's name.
• The `Request update` tag is renamed to `Automatically updated`.

Implementation notes

• New `timelineDisplay.tsx` centralizes the icon factory + `humanizeIdentifier` helper.
• `usePrivacyRequestEventLogs` now fetches the connection list once via `useGetAllDatastoreConnectionsQuery({ size: 1000 })` and resolves each result group's `connection_key` into a display name + `ConnectionTypeLogo` source.
• `ActivityTimelineItem` gains `connectionLogo`, `icon`, and `resultsKey` fields. `resultsKey` keeps the original dataset key around so the log drawer lookup still works after the title is replaced with the friendlier display name.
• `stubPrivacyRequests` adds a default empty connection list intercept so the timeline behaves predictably under Cypress.

Test plan

• `tsc --noEmit` passes
• `jest events-and-logs` passes (14/14)
• `eslint` clean on changed files
• Cypress `Privacy Requests` suite passes
• Manual smoke: open a completed privacy request, verify integration logos render, "Fides:" is gone, manual task / comment rows show a user icon + name, tag reads "Automatically updated"

🤖 Generated with Claude Code

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
fides-plus-nightly	Error		May 11, 2026 0:03am

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
fides-privacy-center	Ignored		May 11, 2026 0:03am

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.23%. Comparing base (6d220c9) to head (06738b7).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8140   +/-   ##
=======================================
  Coverage   85.23%   85.23%           
=======================================
  Files         638      638           
  Lines       42011    42011           
  Branches     4937     4937           
=======================================
  Hits        35808    35808           
  Misses       5096     5096           
  Partials     1107     1107           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.