🗃️ 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.

rootfs/usr/local/bin/entrypoint.sh
rootfs/usr/local/etc/docker/functions/entrypoint.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/share/template-files/config/env/default.sample

@@ -116,7 +116,7 @@ DATABASE_DIR_SUPABASE="${DATABASE_DIR_SUPABASE:-$DATABASE_BASE_DIR/supabase}"
 DOCKER_HOST="unix://var/run/docker.sock"
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 # File locations
-ENTRYPOINT_PID_FILE="${ENTRYPOINT_PID_FILE:-/run/init.d/entrypoint.pid}"
+ENTRYPOINT_PID_FILE="${ENTRYPOINT_PID_FILE:-/run/.entrypoint.pid}"
 ENTRYPOINT_INIT_FILE="${ENTRYPOINT_INIT_FILE:-/config/.entrypoint.done}"
 ENTRYPOINT_DATA_INIT_FILE="${ENTRYPOINT_DATA_INIT_FILE:-/data/.docker_has_run}"
 ENTRYPOINT_CONFIG_INIT_FILE="${ENTRYPOINT_CONFIG_INIT_FILE:-/config/.docker_has_run}"

rootfs/usr/local/share/template-files/config/env/examples/zz-entrypoint.sh

@@ -1,6 +1,6 @@
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 # File locations
-ENTRYPOINT_PID_FILE="${ENTRYPOINT_PID_FILE:-/run/init.d/entrypoint.pid}"
+ENTRYPOINT_PID_FILE="${ENTRYPOINT_PID_FILE:-/run/.entrypoint.pid}"
 ENTRYPOINT_INIT_FILE="${ENTRYPOINT_INIT_FILE:-/config/.entrypoint.done}"
 ENTRYPOINT_DATA_INIT_FILE="${ENTRYPOINT_DATA_INIT_FILE:-/data/.docker_has_run}"
 ENTRYPOINT_CONFIG_INIT_FILE="${ENTRYPOINT_CONFIG_INIT_FILE:-/config/.docker_has_run}"