docs: adds rule extensions permissions to pre-defined roles [COIN-2401]

[cfereday]

Corresponding docs change to this Registry change https://app.graphite.com/github/pr/snyk/registry/44814?ref=gt-pasteable-stack.

Follows up on feedback provided in https://github.com/snyk/registry/pull/43517#discussion_r2993842339 to add the rule_extension* permission to the default group/org roles, now that rule extensions is GA https://docs.snyk.io/scan-fix-and-prevent/scan-with-snyk/snyk-code/rule-extensions;

Now that rule extensions is GA, we can add the permission to the default group/org roles as suggested in the initial review of the PR introducing the permission in the UI. We also need to make a documentation change to add these pre-defined roles to https://docs.snyk.io/snyk-admin/user-roles/pre-defined-roles.

Jira ticket COIN-2401

Changes made to documentation here:

• Group level - Read/Create/Edit/Delete for Group Admin, Read for Group
  Viewer
• Org level - Org Admin / Org Collaborator , Group Admin

---

Note

Low Risk
Documentation-only permission matrix updates; no application or authorization behavior changes in this repo.

Overview
Updates pre-defined roles documentation so it matches Registry defaults now that Snyk Code rule extensions is GA.

The Organization-level matrix gains Test Rule Extensions for Org Admin, Org Collaborator, and Group Admin (inherited org permissions).

The Group-level matrix adds Read, Create, Edit, and Delete Rule Extensions: Group Admin gets full CRUD; Group Viewer gets read-only.

^{Reviewed by Cursor Bugbot for commit 78a7787. Bugbot is set up for automated code reviews on this repo. Configure here.}

[cfereday]

• docs: adds rule extensions permissions to pre-defined roles [COIN-2401] #1505 👈 (View in Graphite)
• main

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[minsiyang]

nit: we should relocate the Test Rule Extensions to a better location, so it will not to break up the Projects permission group.

[minsiyang]

Shouldn't the permission be View Rule Extensions instead of Read Rule Extensions?