🐛 Fix __create_service_env to write .local.sh to disk 🐛

The .local.sh block defined stub functions in memory but never
wrote the file to disk, so __file_exists_with_content always
failed and __create_service_env returned non-zero on every run.
Fix: use a heredoc to write the stub functions into .local.sh.
- rootfs/usr/local/etc/docker/init.d/05-opencloud.sh: write .local.sh
via heredoc in __create_service_env; bump version to 202606261600-git

rootfs/usr/local/etc/docker/init.d/01-clamav.sh

rootfs/usr/local/etc/docker/init.d/01-clamav.sh

@@ -402,6 +402,10 @@ __create_service_env() {
 EOF
   fi
   if [ ! -f "/config/env/${SERVICE_NAME:-$SCRIPT_NAME}.local.sh" ]; then
+  	cat <<'EOF' >"/config/env/${SERVICE_NAME:-$SCRIPT_NAME}.local.sh"
+# - - - - - - - - - - - - - - - - - - - - - - - - -
+# Local overrides - sourced after the main env file.
+# Redefine any of these functions to customise behaviour.
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 __run_precopy_local() { true; }
 # - - - - - - - - - - - - - - - - - - - - - - - - -
@@ -419,6 +423,7 @@ EOF
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 __update_ssl_conf_local() { true; }
 # - - - - - - - - - - - - - - - - - - - - - - - - -
+EOF
   fi
   __file_exists_with_content "/config/env/${SERVICE_NAME:-$SCRIPT_NAME}.sh" || true
   return 0