22500 Phase 1: extract pure helpers from elements index

memory-bank/change-log.md

@@ -18,6 +18,40 @@ Follow-ups:
 
 ---
 
+### CL-00X: 22500 `components/elements/index.js` Phase 1 helper extraction
+
+date: 2026-04-07  
+author: Cline  
+scope: `components/elements/index.js`, `components/elements/helpers/fileUploadHelpers.js`, `components/elements/helpers/translationHelpers.js`, `memory-bank/refactor-backlog.md`  
+type: change  
+rationale: Execute Phase 1 of the approved `components/elements/index.js` decomposition plan by extracting pure helper logic only, reducing monolith coupling while preserving UI/component behavior.  
+impact: No route/API contract changes; refactor-only extraction of translation/file-upload helper functions with expected behavior parity for EN/CY field labels, file naming, thumbnail icon mapping, and filename validation.  
+status: completed
+
+Summary:
+
+- Created work branch from `origin/SIPS-Development`: `22500-elements-index-phase1`.
+- Added helper modules:
+    - `components/elements/helpers/fileUploadHelpers.js`
+        - `getThumbnailIconByMimeType`
+        - `getDocumentTypePrefix`
+        - `validateUploadFilename`
+    - `components/elements/helpers/translationHelpers.js`
+        - `getFieldTranslation`
+        - `getPickListTranslation`
+- Updated `components/elements/index.js` to consume these helpers and removed duplicated inline helper implementations.
+- Kept field renderer/component placement and external prop contracts unchanged (Phase 1 non-goals respected).
+- Updated `memory-bank/refactor-backlog.md` with a phased Priority 6 track and Phase 1 guardrail-aligned acceptance criteria.
+
+Validation:
+
+- `npx eslint components/elements/index.js components/elements/helpers/fileUploadHelpers.js components/elements/helpers/translationHelpers.js` -> pass
+
+Follow-ups:
+
+- Phase 2: extract low-risk leaf field renderer components from `components/elements/index.js` in bounded slices.
+- Perform manual EN/CY + a11y smoke matrix on new appeal/myportal form journeys before merge.
+
 ### CL-001: TASK22211 endpoint search-document contract consistency slice
 
 date: 2026-03-23