test(portal): add phase22 behavioural closure and route harmonization

memory-bank/change-log.md

@@ -2639,3 +2639,45 @@ Validation:
 Follow-ups:
 
 - Optional closure slice: add a dedicated phase22 portal-service behavioural suite and finish harmonization of remaining direct query string composition in `portalDirectService` write helpers.
+
+---
+
+### CL-074: TASK22260 optional closure condensed slice — portal phase22 behavioural coverage + final write-helper query harmonization
+
+date: 2026-03-25
+author: Cline
+scope: `actions/services/portalDirectService.js`, `tests/phase22/{portal-service-behaviour,index}.test.cjs`
+type: change
+rationale: Complete optional closure work as one condensed slice by adding explicit portal behavioral coverage and removing remaining direct literal query strings in portal write helpers.
+impact: Improves regression confidence for signed portal flows and closes remaining route-composition harmonization gap in portal service write helpers without changing runtime behavior contracts.
+status: completed
+
+Summary:
+
+- Harmonized remaining portal write-helper route literals to `buildFileQuery(...)`:
+    - `createWatchedCases`
+    - `setRepInvolvment`
+    - `setCaseInvolvment`
+- Added new phase22 suite `tests/phase22/portal-service-behaviour.test.cjs` covering:
+    - signed hash suffix append path in `sendCaseCompleteMessage`
+    - signed delete request contract + headers in `deleteMyRepresentations`
+    - harmonized route helper URL in `createWatchedCases`
+    - signed pre-request rejection contract in `sendRepCompleteMessage` when hash-signing fails
+- Updated `tests/phase22/index.test.cjs` aggregate runner to include `portal-service-behaviour`.
+
+Validation:
+
+- `node tests/phase22/portal-service-behaviour.test.cjs` -> pass (4/4)
+- `node tests/phase22/index.test.cjs` -> pass
+    - core-token: 2/2
+    - client-utils: 6/6
+    - file-client: 4/4
+    - case-service: 4/4
+    - portal-service: 4/4
+    - phase22 combined: pass
+- `node tests/phase7/service-behaviour.test.cjs` -> pass (13/13)
+- `npm run lint` -> warnings only (pre-existing `react-hooks/exhaustive-deps`; no new lint errors)
+
+Follow-ups:
+
+- Closure for this condensed stream complete; any further work should be a separate expansion stream (e.g., additional service-level phase22 coverage breadth).