Permanent SPDK trial

CLAUDE.md

@@ -37,6 +37,15 @@ scripts/build-ipxe-oci.sh                 sbsign snponly.efi -> FROM-scratch fle
 serving/                                  Lab serving stack: dnsmasq + nginx + SPDK
                                           (dnsmasq + fleet-ipxe + SPDK images are
                                           CI-built + pulled; see .gitea/workflows/)
+serving/spdk/                             LONG-LIVED nvmf_tgt: spdk-target.sh
+                                          (persistent entrypoint, never restarts
+                                          for a version change) + spdk-release.sh
+                                          (online add/remove/drain a version, 1
+                                          subsystem/version) + spdk-ctl.sh (host
+                                          load/unload/list for rolling updates).
+                                          releases/<ver>/ = staged rootfs+verity.json.
+                                          spdk-setup.sh (parent dir) is the legacy
+                                          single-version entrypoint (deprecated).
 serving/kiosk-app/                         Svelte+Tailwind spaceship-terminal SPA
                                           — GIT SUBMODULE (own repo + CI; builds
                                           the fleet-kiosk image the stack pulls).