feat: add sidefx labs by default in the image

houdini/README.md

@@ -1,5 +1,10 @@
 # Houdini Apprentice in distrobox
 
+SideFX Labs is baked into the image at build time (see `SIDEFXLABS_VERSION`
+below) — no need to install it from Houdini's own package menu, which needs
+`git` and a working CA bundle that this image doesn't ship. The Labs menu
+should just appear in Houdini's menu bar on first launch.
+
 Two images built from the same `Dockerfile`, pushed to a private registry,
 used via distrobox:
 
@@ -32,11 +37,16 @@ TARBALL=houdini-22.0.429-linux_x86_64_gcc14.2.tar.gz
 # Date the EULA at https://www.sidefx.com/legal/license-agreement/ was last
 # updated, format YYYY-MM-DD, no "SideFX-" prefix.
 EULA_DATE=2021-10-13
+# Release tag at https://github.com/sideeffects/SideFXLabs/releases — pick
+# the newest tag whose bundled SideFXLabs.json "enable" range covers your
+# Houdini version (default below already matches 22.0.429).
+SIDEFXLABS_VERSION=22.0.440
 
 # Build amd image
 podman build -f Dockerfile \
   --build-arg "HOUDINI_TARBALL=${TARBALL}" \
   --build-arg "HOUDINI_EULA_DATE=${EULA_DATE}" \
+  --build-arg "SIDEFXLABS_VERSION=${SIDEFXLABS_VERSION}" \
   --target "amd" \
   -t "${REGISTRY}/houdini-amd:${VERSION}" \
   -t "${REGISTRY}/houdini-amd:latest" .
@@ -45,6 +55,7 @@ podman build -f Dockerfile \
 podman build -f Dockerfile \
   --build-arg "HOUDINI_TARBALL=${TARBALL}" \
   --build-arg "HOUDINI_EULA_DATE=${EULA_DATE}" \
+  --build-arg "SIDEFXLABS_VERSION=${SIDEFXLABS_VERSION}" \
   --target "nvidia" \
   -t "${REGISTRY}/houdini-nvidia:${VERSION}" \
   -t "${REGISTRY}/houdini-nvidia:latest" .