ENG-2919: Add Slack cards to evidence components

[galvana]

Ticket ENG-2919

Description Of Changes

Adds rendering support for Slack thread evidence (team input) in the evidence drawer. Previously, team input evidence from Slack was not displayed because the TEAM_INPUT evidence type was missing from the filter and there was no card component to render the thread data.

Code Changes

• Added SlackThreadCard component to render Slack thread evidence with collapsible message list
• Added TEAM_INPUT to the EvidenceType enum and evidence filter in EvidenceSection.tsx
• Added SlackMessage, SlackEvidenceData interfaces and data field to EvidenceItem type
• Added changelog entry

Steps to Confirm

1. Navigate to an assessment with Slack thread evidence (team input type)
2. Open the evidence drawer and confirm the Slack thread card renders with channel name, message count, and date
3. Expand the collapsible message list and verify individual messages show sender, timestamp, and text
4. Confirm the "View thread in Slack" link opens correctly

Pre-Merge Checklist

• Issue requirements met
• All CI pipelines succeeded
• CHANGELOG.md updated
  • Add a db-migration This indicates that a change includes a database migration label to the entry if your change includes a DB migration
  • Add a high-risk This issue suggests changes that have a high-probability of breaking existing code label to the entry if your change includes a high-risk change (i.e. potential for performance impact or unexpected regression) that should be flagged
  • Updates unreleased work already in Changelog, no new entry necessary
• UX feedback:
  • All UX related changes have been reviewed by a designer
  • No UX review needed
• Followup issues:
  • Followup issues created
  • No followup issues
• Database migrations:
  • Ensure that your downrev is up to date with the latest revision on main
  • Ensure that your downgrade() migration is correct and works
    • If a downgrade migration is not possible for this change, please call this out in the PR description!
  • No migrations
• Documentation:
  • Documentation complete, PR opened in fidesdocs
  • Documentation issue created in fidesdocs
  • If there are any new client scopes created as part of the pull request, remember to update public-facing documentation that references our scope registry
  • No documentation updates required

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2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
fides-plus-nightly	Ignored	Preview	Mar 17, 2026 11:47pm
fides-privacy-center	Ignored		Mar 17, 2026 11:47pm

[greptile-apps]

Greptile Summary

This PR adds Slack thread card rendering to the evidence section of privacy assessments. It introduces a new TEAM_INPUT evidence type, new TypeScript interfaces (SlackMessage, SlackEvidenceData), and a SlackThreadCard component that displays Slack channel info, a link to the thread, and a collapsible message list. The EvidenceSection filter is updated to categorize TEAM_INPUT alongside other human-sourced evidence.

• New SlackThreadCard component renders Slack thread evidence with sender, timestamp, and collapsible messages using Ant Design's Collapse and List
• EvidenceItem type extended with an optional data field for structured Slack evidence data
• fundamental_rights_impact_assessment.md appears to be accidentally committed to the repo root — should be removed or relocated

Confidence Score: 3/5

• The code changes are sound, but an unrelated reference document appears to be accidentally included in the commit.
• The TypeScript and React changes are well-structured and follow existing patterns. Score is lowered because fundamental_rights_impact_assessment.md appears to be an accidental commit of a reference document to the repository root, which should be addressed before merge.
• fundamental_rights_impact_assessment.md — likely an accidental commit that should be removed from this PR.

Important Files Changed

Filename	Overview
clients/admin-ui/src/features/privacy-assessments/EvidenceCardGroup.tsx	Adds SlackThreadCard component for rendering Slack thread evidence with collapsible message list. Uses a hardcoded hex color instead of a palette token.
clients/admin-ui/src/features/privacy-assessments/EvidenceSection.tsx	Adds TEAM_INPUT to the humanItems filter so team input evidence is grouped with human-sourced items. Straightforward one-line addition.
clients/admin-ui/src/features/privacy-assessments/types.ts	Adds TEAM_INPUT enum value, SlackMessage and SlackEvidenceData interfaces, and an optional data field on EvidenceItem. Clean type additions.
fundamental_rights_impact_assessment.md	Reference document about EU AI Act FRIA requirements added to repo root. Appears to be accidentally committed — not related to the Slack card changes.

_{Last reviewed commit: 40f0b31}

[greptile-apps]

Accidental file committed to repo root

This reference document appears to have been unintentionally included in the PR. It is not related to the Slack card evidence changes and is sitting at the repository root alongside files like README.md and CHANGELOG.md. Consider removing it from the commit, or if it is intentional, moving it to an appropriate documentation directory.

[lucanovera]

Thank you for tackling the FE changes as well. I've just adjusted a few things to comply with our FE rules. Approved!