TASK22229: P2-S2 batch 3 migrate case/event relay GET endpoints

memory-bank/change-log.md

@@ -836,3 +836,37 @@ Validation:
 Follow-ups:
 
 - Continue P2-S2 with Batch 3 as the next dedicated commit on this branch.
+
+---
+
+### CL-022: TASK22229 P2-S2 Batch 3 (case/event relay GET cluster)
+
+date: 2026-03-24
+author: Cline
+scope: `pages/api/endpoint/{getcase_api,getcasebyid_api,getincidentbyid_api,getsipsevents_api}.js`, `tests/phase21/endpoint-handler-contract.test.cjs`
+type: change
+rationale: Deliver third P2-S2 commit by migrating an additional bounded case/event endpoint cluster onto shared `relayGet` while preserving route contracts.
+impact: Further relay boilerplate reduction and consistent forwarding behavior with no intended contract changes.
+status: completed
+
+Summary:
+
+- Migrated Batch 3 endpoints to `relayGet`:
+    - `getcase_api.js` (preserved `@odata.nextLink` normalization)
+    - `getcasebyid_api.js` (preserved `@odata.nextLink` normalization and array-wrapped success payload)
+    - `getincidentbyid_api.js`
+    - `getsipsevents_api.js`
+- Updated phase21 endpoint contract tests to mock `relayGet` for migrated handlers in guard/catch paths.
+
+Validation:
+
+- `node tests/phase21/api-contract-slice1.test.cjs` -> pass
+    - helper: 4/4
+    - file-handler: 53/53
+    - email-handler: 12/12
+    - endpoint-handler: 152/152
+    - documents-handler: 3/3
+
+Follow-ups:
+
+- Continue P2-S2 with next bounded batch (e.g. search/listing cluster) as a separate commit if required.