fix(release): protect backend recovery races

scripts/release-backend.sh

@@ -132,7 +132,6 @@ artifact_commit_sha=""
 artifact_sha256=""
 artifact_bytes=""
 artifact_module_name=""
-artifact_module_sha256=""
 remote_current_sha256=""
 remote_current_bytes=""
 
@@ -168,11 +167,6 @@ validate_local_artifact() {
       head -1
   )"
   [[ -n "$artifact_module_name" ]] || fail "release JAR does not contain ruoyi-aihr"
-  artifact_module_sha256="$(
-    unzip -p "$artifact" "BOOT-INF/lib/$artifact_module_name" |
-      sha256sum |
-      awk '{print tolower($1)}'
-  )"
 }
 
 remote_value() {
@@ -289,7 +283,6 @@ run_deploy_plan() {
   echo "artifact_bytes=$artifact_bytes"
   echo "artifact_sha256=$artifact_sha256"
   echo "artifact_module=$artifact_module_name"
-  echo "artifact_module_sha256=$artifact_module_sha256"
   echo "remote_target=$REMOTE_SSH:$REMOTE_PATH"
   echo "remote_current_sha256=$remote_current_sha256"
   echo "remote_service=$REMOTE_SERVICE"