feat: implement update-service v1 migration and enrollment flow

- added /update/enroll endpoint and enrollment logic
- migrated update client to v1 api endpoints and bearer auth
- implemented remote status reporting in backend and scripts
- updated requirements and project status

project-management/feedback/teal/app_icon_ai.svg

@@ -0,0 +1,9 @@
+<svg width="512" height="512" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <!-- V12 App Icon (Teal) -->
+  <rect width="512" height="512" rx="115" fill="#1F2A37"/>
+  <g transform="translate(120, 96) scale(8)">
+    <rect x="0" y="4" width="10" height="32" rx="1.5" fill="#FFFFFF" fill-opacity="0.9"/>
+    <rect x="24" y="4" width="10" height="32" rx="1.5" fill="#FFFFFF" fill-opacity="0.9"/>
+    <rect x="12" y="17" width="10" height="19" rx="1.5" fill="#0EA5A4"/>
+  </g>
+</svg>