Keep /ops/platform-setup/* as a stable canonical route family while the shared setup/topology cutover continues. Preserve bookmarked operator entry points without forking the actual setup behavior into a second product shell. Owner shell: Preserved canonical leaf routes:/ops/platform-setup/ops/platform-setup/regions-environments/ops/platform-setup/promotion-paths/ops/platform-setup/workflows-gates/ops/platform-setup/gate-profiles/ops/platform-setup/release-templates/ops/platform-setup/policy-bindings/ops/platform-setup/defaults-guardrails Shared setup/trust destinations still owned elsewhere:/setup/topology/*/setup/trust-signing ops/platform-setup/* must render their intended platform-setup pages without rewriting the browser URL to setup/topology/*.Explicit drill-ins into the broader topology product may still link to /setup/topology/* when the destination has no canonical ops/platform-setup equivalent. trust-signing stays a redirect into Setup > Trust & Signing; it is not owned by Platform Setup.Keep:stable operator bookmarks for legacy platform-setup leaves the lighter platform-setup summaries for regions, promotion paths, workflows, and gate profiles a clear distinction between the Ops > Platform Setup handoff shell and the broader Setup > Topology workspace Why:these leaves are still referenced from live setup and ops surfaces the defect was URL drift, not missing product value Replaced redirect-only platform-setup topology leaves with mounted canonical pages. Updated Platform Setup home quick links to stay on /ops/platform-setup/*. Repaired stale page-local /platform/setup/* and /topology/* links to either canonical platform-setup leaves or valid setup/topology drill-ins. Added focused Angular and Playwright regression coverage for preserved canonical URLs. docs/features/checked/web/platform-setup-canonical-route-preservation-ui.mddocs/features/checked/web/topology-trust-administration-ui.mddocs/modules/ui/topology-trust-administration/README.md