🗃️ rootfs: shield internal entrypoint PID files from /run/*.pid sweeps 🗃️

Update the embedded entrypoint copies in rootfs/ to match the
upstream template change. Internal state files renamed to dotfiles
so they're not matched by `/run/*.pid` cleanup globs:
- /run/init.d/entrypoint.pid -> /run/.entrypoint.pid
- /run/no_exit.pid -> /run/.no_exit.pid
- /run/backup.pid -> /run/.backup.pid
- /run/__start_init_scripts.pid -> /run/.start_init_scripts.pid
Per-service PIDs in /run/init.d/ are unchanged.

.claude/
Dockerfile
.env.scripts
.gitattributes
.gitea/workflows/docker.yaml
.gitignore
LICENSE.md
rootfs/root/docker/setup/00-init.sh
rootfs/root/docker/setup/01-system.sh
rootfs/root/docker/setup/02-packages.sh
rootfs/root/docker/setup/03-files.sh
rootfs/root/docker/setup/04-users.sh
rootfs/root/docker/setup/05-custom.sh
rootfs/root/docker/setup/06-post.sh
rootfs/root/docker/setup/07-cleanup.sh
rootfs/tmp/etc/bind/named.conf
rootfs/tmp/etc/nginx/fastcgi_params
rootfs/tmp/etc/nginx/nginx.conf
rootfs/usr/local/bin/entrypoint.sh
rootfs/usr/local/bin/pkmgr
rootfs/usr/local/etc/docker/functions/entrypoint.sh
rootfs/usr/local/etc/docker/init.d/01-tor.sh
rootfs/usr/local/etc/docker/init.d/02-named.sh
rootfs/usr/local/etc/docker/init.d/03-nginx.sh
rootfs/usr/local/etc/docker/init.d/04-php-fpm.sh
rootfs/usr/local/share/template-files/config/env/default.sample
rootfs/usr/local/share/template-files/config/env/examples/zz-entrypoint.sh

rootfs/usr/local/bin/pkmgr

@@ -103,7 +103,7 @@ install)
   [ -n "$1" ] || exit 0
   [ "$USER_UID" -eq 0 ] || [ "$USER" = "root" ] || pkmgr_install_cmd="sudo $pkmgr_install_cmd"
   if [ -f "$1" ]; then
-    install_list="$(cat "$1")"
+    install_list="$(tr '\n' ' ' < "$1")"
   else
     install_list="$*"
   fi
@@ -140,3 +140,4 @@ clean)
 esac
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 # end
+