feat(flows): add update_scrum4me_web flow and UI page

- Update ops-agent/flows.example/update_scrum4me_web.yml with full
  deployment steps: git_status, git_fetch, git_log_ahead, git_pull,
  npm_ci, prisma_migrate_deploy, npm_run_build, systemctl_restart,
  and smoke test against thuis.jp-visser.nl/api/products
- Add npm_ci, prisma_migrate_deploy, npm_run_build, and
  curl_smoke_scrum4me_thuis to commands.yml.example
- Add /flows/update-scrum4me-web UI page with Run and Dry Run buttons,
  streaming terminal output, and link to audit log on completion

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ops-agent/flows.example/update_scrum4me_web.yml

@@ -1,31 +1,48 @@
-# Deploy the latest Scrum4Me web image.
+# Deploy the latest Scrum4Me web application from source.
 # Copy to /etc/ops-agent/flows/update_scrum4me_web.yml on the host.
 #
 # Steps:
-#   1. Fetch remote refs
-#   2. Fast-forward pull (aborts if working tree is dirty)
-#   3. Rebuild the Docker image
-#   4. Recreate the container in detached mode
-#   5. Smoke-test the public endpoint
+#   1. Show current git status (dirty tree aborts later at git_pull)
+#   2. Fetch remote refs
+#   3. Show commits ahead of upstream
+#   4. Fast-forward pull (aborts if working tree is dirty)
+#   5. Install dependencies
+#   6. Apply database migrations
+#   7. Build the application
+#   8. Restart the systemd service
+#   9. Smoke-test the public endpoint (200 or 401 = pass)
 
 name: Update Scrum4Me Web
-description: Pull latest code, rebuild Docker image, and restart the Scrum4Me web service
+description: Pull latest code, install deps, run migrations, build, and restart scrum4me-web.service
 steps:
+  - command_key: git_status
+    args: ["/srv/scrum4me/repos/Scrum4Me"]
+    on_failure: continue
+
   - command_key: git_fetch
-    args: ["/srv/scrum4me"]
+    args: ["/srv/scrum4me/repos/Scrum4Me"]
     on_failure: abort
 
+  - command_key: git_log_ahead
+    args: ["/srv/scrum4me/repos/Scrum4Me"]
+    on_failure: continue
+
   - command_key: git_pull
-    args: ["/srv/scrum4me"]
+    args: ["/srv/scrum4me/repos/Scrum4Me"]
     on_failure: abort
 
-  - command_key: docker_compose_build
+  - command_key: npm_ci
+    on_failure: abort
+
+  - command_key: prisma_migrate_deploy
+    on_failure: abort
+
+  - command_key: npm_run_build
+    on_failure: abort
+
+  - command_key: systemctl_restart
     args: ["scrum4me-web"]
     on_failure: abort
 
-  - command_key: docker_compose_up
-    args: ["scrum4me-web"]
-    on_failure: abort
-
-  - command_key: curl_smoke_scrum4me_web
+  - command_key: curl_smoke_scrum4me_thuis
     on_failure: continue