Add catatonit/nftables/docker-compose packages, fix CSRF/streaming/storage bugs found by live testing

- Package #9-11: catatonit (pod infra init), nftables (netavark firewall
  backend), docker-compose (external compose provider for `podman compose`)
  — all vendored prebuilt binaries, versions.env pinned, propagated through
  build-packages.sh/release.sh/podman.plg/verify+update-packages.sh.
- Fix WebUI: every POST action was silently failing (empty response body)
  because Unraid's own CSRF protection was never satisfied — app.js now
  sends the page's csrf_token as X-CSRF-Token.
- Fix WebUI: PodmanClient::pullImage() assumed a single JSON response, but
  /images/pull actually streams newline-delimited JSON — every successful
  pull was throwing "Expected a JSON object/array response".
- Fix WebUI: compose.php's up/down status detection had the same
  single-JSON-vs-NDJSON bug for `podman compose ps`, plus stderr was
  corrupting the parse.
- Add cache-busting (?v=<mtime>) to Podman.page's script/style tags so a
  redeployed JS/CSS fix isn't served stale from browser cache.
- Add a reusable modal dialog (app.js openFormModal) replacing
  prompt()/alert() for New Volume/Network/Pull Image.
- Add host-path (bind-mount) support when creating a named volume.
- Add Create Container (image, name, network mode incl. custom networks,
  ports, volumes, env, restart policy, privileged, start-after-create),
  auto-pulling the image on first use since /containers/create doesn't.

All fixes verified live against a real podman system service and, where
reachable, via the actual WebUI over the real socket — not just unit-level.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

scripts/release.sh

@@ -4,7 +4,7 @@
 #
 # Cuts a release of the plugin itself:
 #   1. Bumps the &version; entity in plugin/podman.plg to <new-version>.
-#   2. Builds all seven packages (scripts/build-packages.sh) unless
+#   2. Builds all eleven packages (scripts/build-packages.sh) unless
 #      SKIP_BUILD=1 is set (useful when CI already built them in a prior job
 #      and only wants this script to do the .plg/CHANGELOG bookkeeping).
 #   3. Verifies + consolidates checksums (scripts/checksums.sh).
@@ -54,10 +54,12 @@ RELEASE_BASE_URL="https://github.com/$REPO_SLUG/releases/download/$RELEASE_TAG"
 
 # Component name -> the entity name prefix used in podman.plg. Must match
 # plugin/podman.plg's <!ENTITY NAME_txz_...> declarations exactly.
-# unraid-podman is the plugin's own scaffolding package (see
-# packages/unraid-podman/README.md), not an upstream component, but it's
-# released and entity-updated exactly like the other seven.
-COMPONENTS=(podman conmon crun netavark aardvark-dns passt fuse-overlayfs unraid-podman)
+# catatonit, nftables, and docker-compose are vendored runtime
+# dependencies (not built from source, see their own packages/*/README.md)
+# and unraid-podman is the plugin's own scaffolding package (see
+# packages/unraid-podman/README.md), not an upstream component, but all
+# four are released and entity-updated exactly like the seven upstream ones.
+COMPONENTS=(podman conmon crun netavark aardvark-dns passt fuse-overlayfs catatonit nftables docker-compose unraid-podman)
 
 echo "==> Releasing unraid-podman plugin v$NEW_VERSION (packages tag: $RELEASE_TAG)"