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

docs/architecture/openapi/schemas/upload-response.yaml

@@ -0,0 +1,16 @@
+type: object
+required:
+  - version
+  - manifest_url
+properties:
+  version:
+    type: string
+    example: 1.2.3
+  manifest_url:
+    type: string
+    format: uri
+    example: https://update.wlkns.org/v1/projects/demo/manifest
+  active:
+    type: boolean
+    description: True if release is active
+    example: true