fix(ci): normalize stack path for staging deployment

Normalize stack path locally to avoid ~ confusion when passing to remote shell

.gitea/workflows/build-image.yml

@@ -861,11 +861,19 @@ jobs:
               SELECTED_IMAGE="$DEFAULT_IMAGE"
             fi
           fi
-          
+
           if [ -z "$SELECTED_IMAGE" ]; then
             SELECTED_IMAGE="$DEFAULT_IMAGE"
           fi
           
+          # Normalize stack path locally to avoid "~" confusion when passing to remote shell
+          STACK_PATH_RAW="~/deployment/stacks/staging"
+          if [ -n "$HOME" ]; then
+            STACK_PATH="${STACK_PATH_RAW/#\~/$HOME}"
+          else
+            STACK_PATH="$STACK_PATH_RAW"
+          fi
+          
           SELECTED_TAG="${SELECTED_IMAGE##*:}"
           SELECTED_REPO="${SELECTED_IMAGE%:*}"
           
@@ -875,8 +883,6 @@ jobs:
             FALLBACK_IMAGE="${SELECTED_REPO}:latest"
           fi
           
-          STACK_PATH="~/deployment/stacks/staging"
-          
           echo "🚀 Starting staging deployment..."
           echo "   Image: ${SELECTED_IMAGE}"
           echo "   Tag: ${SELECTED_TAG}"