fix(bambuddy): add mkdir before data restore & add ffmpeg dependency

- Add mkdir -p before restoring data dir to prevent data loss on update
  (CLEAN_INSTALL=1 wipes target dir including SQLite DB)
- Add ffmpeg as dependency for printer cam support
- Add ensure_dependencies ffmpeg to update path for existing containers

Fixes #13598, Fixes #13599

ct/bambuddy.sh

@@ -29,6 +29,8 @@ function update_script() {
     exit
   fi
 
+  ensure_dependencies ffmpeg
+
   if check_for_gh_release "bambuddy" "maziggy/bambuddy"; then
     msg_info "Stopping Service"
     systemctl stop bambuddy
@@ -54,6 +56,7 @@ function update_script() {
     msg_ok "Rebuilt Frontend"
 
     msg_info "Restoring Configuration and Data"
+    mkdir -p /opt/bambuddy/data
     cp /opt/bambuddy.env.bak /opt/bambuddy/.env
     cp -r /opt/bambuddy_data_bak/. /opt/bambuddy/data/
     rm -f /opt/bambuddy.env.bak