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/client-quickstart.md

@@ -0,0 +1,44 @@
+ID: DOC_000008 | Version: 0.1.0 | Status: Draft
+
+# Client Quickstart
+
+## Goal
+Enroll a client, store the long-term token, fetch the manifest, and report status.
+
+## 1) Get a Pre-Shared Token
+Request a one-time enrollment token from an admin/operator.
+
+## 2) Enroll and Receive Long-Term Token
+```
+curl -X POST https://update.wlkns.org/v1/enroll \
+  -H "Content-Type: application/json" \
+  -d '{
+    "project_id": "safe-kiddo-control",
+    "client_id": "kiddo-001",
+    "software_id": "kiddo-agent",
+    "enroll_token": "<pre_shared_token>"
+  }'
+```
+
+Store the returned token locally (file or secret store). Example:
+```
+echo "<long_term_token>" > ./update-token.txt
+```
+
+## 3) Fetch Manifest
+```
+curl -H "Authorization: Bearer $(cat ./update-token.txt)" \
+  https://update.wlkns.org/v1/projects/safe-kiddo-control/manifest
+```
+
+## 4) Report Status
+```
+curl -H "Authorization: Bearer $(cat ./update-token.txt)" \
+  -H "Content-Type: application/json" \
+  -d '{"project_id":"safe-kiddo-control","version":"0.1.2","status":"success","timestamp":"2025-12-30T10:00:00Z"}' \
+  https://update.wlkns.org/v1/projects/safe-kiddo-control/status
+```
+
+## Notes
+- All endpoints require `Authorization: Bearer <token>` except `/v1/enroll`.
+- Status values: `success`, `failed`, `in_progress`.