22541 extract shared my-portal breadcrumb list item helper

memory-bank/change-log.md

@@ -112,6 +112,31 @@ Follow-ups:
 
 - Next bounded slice can extract grouped pathname render blocks from `components/breadcrumbs.js` (data-driven map or small render helpers) while preserving route parity.
 
+### CL-22541-D: breadcrumbs shared my-portal crumb helper extraction
+
+date: 2026-04-09  
+author: Cline  
+scope: `components/breadcrumbs.js`  
+type: change  
+rationale: Continue bounded breadcrumbs decomposition by extracting repeated my-portal breadcrumb `<li>` markup into one local render helper to reduce duplication and keep follow-on slices safer.
+impact: Refactor-only JSX deduplication in breadcrumb rendering; no intended route, auth/session, API, EN/CY, or accessibility behavior change.
+status: completed
+
+Summary:
+
+- Added local `renderMyPortalCrumb()` helper in `components/breadcrumbs.js`.
+- Replaced repeated identical my-portal crumb JSX in multiple `/myportal/*` route branches with helper calls.
+- Kept special-case crumbs untouched where label/href differs (e.g. `newappeal` parent-title crumb, `cyMyPortalHref` account branches).
+
+Validation:
+
+- `npx eslint components/breadcrumbs.js` -> pass.
+- `node tests/phase22/index.test.cjs` -> pass (combined suite).
+
+Follow-ups:
+
+- Next bounded slice can target additional repeated breadcrumb list-item patterns (e.g., repeated case-reference tail item blocks) with same behavior parity approach.
+
 ### CL-00X: 22500 `components/elements/index.js` Phase 1 helper extraction
 
 date: 2026-04-07