docs: update VERSION and SESSION_STATE for v1.14.2 - Blob serialization fix

Documented the complete image pipeline bugfix:
- Part 1 (v1.14.1): Type system mismatch for photo_path fields
- Part 2 (v1.14.2): Blob serialization issue - image not reaching backend

The extracted image blob is now converted to base64 before sending to the API,
ensuring it's JSON-safe and matches the backend's ItemCreate schema.

VERSION.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.14.1",
+  "version": "1.14.2",
   "lastUpdated": "2026-04-21",
-  "phase": "Phase 3 Complete - Image Display Fix"
+  "phase": "Phase 3 Complete - Blob Serialization Fix"
 }