TASK22269: migrate portal deleteMyRepresentations to signed delete helper

memory-bank/change-log.md

@@ -2768,3 +2768,36 @@ Validation:
 Follow-ups:
 
 - Continue Sequence B B1 in future bounded slices by migrating additional signed flows one module/function cluster at a time (outside this slice).
+
+---
+
+### CL-077: TASK22269 Slice B1.2 — portal signed-delete bundle (headered delete migration)
+
+date: 2026-03-25
+author: Cline
+scope: `actions/services/portalDirectService.js`
+type: change
+rationale: Continue signed-request consolidation using bounded grouping by migrating the remaining portal signed delete flow (`deleteMyRepresentations`) onto shared signed helper while preserving required OData headers.
+impact: Further reduces duplicated sign+delete boilerplate in portal service and centralizes signed DELETE execution semantics.
+status: completed
+
+Summary:
+
+- Migrated `deleteMyRepresentations` from inline `buildHashedQueryUrl(...).then(requestJson(...))` to shared `deleteSignedJson(queryUrl, { headers })`.
+- Preserved behavior-critical headers exactly:
+    - `OData-MaxVersion`
+    - `OData-Version`
+    - `Accept`
+    - `Prefer`
+    - `Content-Type`
+- Preserved existing catch/log behavior (`consoleLogger` with safe undefined return on failure).
+
+Validation:
+
+- `npm run lint` -> pass with warnings only (pre-existing `react-hooks/exhaustive-deps`; no new lint errors)
+- `node tests/phase22/index.test.cjs` -> pass
+- `node tests/phase7/service-behaviour.test.cjs` -> pass (13/13)
+
+Follow-ups:
+
+- Next bounded signed GET candidate in portal service is `sendRepCompleteMessage` (single signed URL + GET request path).