seed-data.sh: always refresh static/ and index.html from image

The React bundle hash changes every time the UI is rebuilt. With the old
no-clobber approach, a redeployed container kept serving the old bundle
because the static/ directory already existed on the data volume.

Fix: always overwrite index.html, asset-manifest.json, and the entire
static/ subdirectory from /core/static on every container start. These
are build artifacts (not operator-edited content) so overwriting is safe.
All other top-level entries (channels/, config/, etc.) remain no-clobber.

deploy/truenas/core/seed-data.sh

@@ -1,10 +1,16 @@
 #!/bin/sh
-# seed-data.sh — first-boot seed of /core/data with Dragon Fork
-# landing page artifacts (index.html, whep-player.html).
+# seed-data.sh — boot-time seed of /core/data with Dragon Fork
+# landing page artifacts (index.html, whep-player.html, compiled UI bundle).
 #
-# Runs from the entrypoint before bin/core. Skips itself if any of the
-# target files already exist, so user-supplied content (or content from
-# a previous deploy that they edited) is never clobbered.
+# Runs from the entrypoint before bin/core.
+#
+# Strategy:
+#   - Build artifacts (index.html, asset-manifest.json, static/) are ALWAYS
+#     overwritten so a redeployed container picks up the new UI bundle even
+#     when the data volume already exists.  The React bundle hash changes every
+#     build, so leaving the old bundle in place would serve a stale UI.
+#   - Everything else (channels/, _player/, _playersite/, custom HTML files)
+#     is no-clobber so operator-edited content is never lost.
 #
 # Source dir: /core/static (baked by the Dockerfile)
 # Target dir: /core/data   (operator-mounted; what Core serves at /)
@@ -23,13 +29,25 @@ if [ ! -d "$DST" ]; then
     mkdir -p "$DST"
 fi
 
-# Iterate over both files and directories. The Restreamer UI bundle
-# ships subdirectories (_player, _playersite, static) so this needs
-# the recursive flag; the no-clobber check on the top-level name keeps
-# operator-edited content safe.
+# Always-overwrite entries: build artifacts whose content changes every deploy.
+for always in index.html asset-manifest.json static; do
+    src="$SRC/$always"
+    dst="$DST/$always"
+    [ -e "$src" ] || continue
+    if [ -d "$src" ]; then
+        cp -Rfp "$src" "$dst"
+    else
+        cp -fp "$src" "$dst"
+    fi
+    echo "seed-data: refreshed $always -> $dst"
+done
+
+# No-clobber entries: everything else (operator content, player bundles, etc.)
 for f in "$SRC"/* "$SRC"/.[!.]*; do
     [ -e "$f" ] || continue
     name=$(basename "$f")
+    # Skip entries already handled above.
+    case "$name" in index.html|asset-manifest.json|static) continue ;; esac
     if [ ! -e "$DST/$name" ]; then
         cp -Rp "$f" "$DST/$name"
         echo "seed-data: copied $name -> $DST/$name"