Summary

• Dalgo's RBAC is being simplified from four roles to three (admin / analyst / member, plus an internal super-admin): Account Manager and Pipeline Manager merge into Admin, Guest is renamed to Member, and Analyst loses direct write access to sources/connections/dbt models/pipelines while keeping full content authoring (dashboards, charts, reports, metrics, KPIs, alerts) and view-only infra access.
• Replaces the stale 4-role capability table in docs/settings/user-management.md with the new 3-role breakdown, documents the owner-or-admin delete rule, and adds a note explaining the automatic role migration for existing orgs.
• Fixes a leftover "Account Manager" reference in docs/support/troubleshooting.md.

Notes for reviewers

• Verified against the final state of the feature/rbac branch in DDP_backend/webapp_v2 (not just commit messages — the branch had two in-flight reversals, so I cross-checked test_rbac_v2_roles.py, main-layout.tsx, and the product's own onboarding-carousel copy in onboarding/constants.ts for the authoritative final permissions).
• That branch is not yet merged. This doc update is written for whenever it ships — happy to hold the PR if you'd rather merge docs only after the feature lands.
• The existing screenshots (user_management.png, user_management_invite.png) still show the old role names in the UI since they predate the RBAC change — worth a re-capture once the feature is live.

Test plan

• Ran yarn install + docusaurus start locally and confirmed the page renders with correct breadcrumb, table, and admonitions
• Confirmed sidebar prev/next order (Branding → User Management → Billing) is unaffected
• Re-capture screenshots once RBAC v2 ships to production