docs for redaction

[Madhuvod]

Summary

Briefly explain the purpose of this PR and the problem it solves.

Changes

• What was changed and why
• Any notable design decisions or trade-offs

Type of change

• Bug fix
• Feature
• Refactor
• Documentation
• Chore/CI

Affected areas

• Core (Go)
• Transports (HTTP)
• Providers/Integrations
• Plugins
• UI (React)
• Docs

How to test

Describe the steps to validate this change. Include commands and expected outcomes.

# Core/Transports
go version
go test ./...

# UI
cd ui
pnpm i || npm i
pnpm test || npm test
pnpm build || npm run build

If adding new configs or environment variables, document them here.

Screenshots/Recordings

If UI changes, add before/after screenshots or short clips.

Breaking changes

• Yes
• No

If yes, describe impact and migration instructions.

Related issues

Link related issues and discussions. Example: Closes #123

Security considerations

Note any security implications (auth, secrets, PII, sandboxing, etc.).

Checklist

• I read docs/contributing/README.md and followed the guidelines
• I added/updated tests where appropriate
• I updated documentation where needed
• I verified builds succeed (Go and UI)
• I verified the CI pipeline passes locally if applicable

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 06-20-docs_for_redaction

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[Madhuvod]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• docs for redaction #4565 👈 (View in Graphite)
• feat(logging): redact trace content before connector export #4417
• feat(logging): add transient redaction data field and context key for guardrails #4169
• removing old pii redactors ui code + presidio icon #4133
• dev

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