TASK22057: phase18 additional consolidation slices

memory-bank/activeContext.md

@@ -568,6 +568,33 @@
 - Broader consistency scan note:
     - no additional broad hash/400 consistency gaps were identified in `pages/api/endpoint/**` in this pass.
 
+## Phase 18 additional consolidation slices (2026-03-14)
+
+- Continued on branch:
+    - `TASK22057-phase17-hardening-closeout`
+- Completed all three requested additional slices:
+    1. endpoint logging/input hygiene
+    2. file hash-guard flow consistency
+    3. create/update input-guard + logging hygiene
+- Touched handlers:
+    - `pages/api/endpoint/deletewatchedcases_api.js`
+    - `pages/api/endpoint/getaccounts_api.js`
+    - `pages/api/endpoint/getbasicsearchpaged_api.js`
+    - `pages/api/endpoint/getappealpdfdocuments_api.js`
+    - `pages/api/file/deleteblob.js`
+    - `pages/api/file/deleteawaitingsubmissionfromblob.js`
+    - `pages/api/file/getprogressobjblob.js`
+    - `pages/api/file/getbloblist.js`
+    - `pages/api/file/createcase_api.js`
+    - `pages/api/file/updatecase_api.js`
+    - `pages/api/file/editRepJson.js`
+- Outcome:
+    - consistent early 400 guard behavior for missing/invalid required inputs/hash in selected handlers
+    - noisy direct logs removed in touched sensitive flows
+    - no response-shape/signature contract changes intended
+- Added focused test pack:
+    - `tests/phase18/service-behaviour.test.cjs` (8/8 pass)
+
 ## Likely next steps
 
 1. Stabilize and simplify breadcrumb/back-link decision logic with focused regression checks.