fix(ci): make jfrog cache-hit branch explicit in app detection

Agent-Logs-Url: https://github.com/IONOS-Productivity/nc-server/sessions/25427ab9-aedf-4687-ab49-8e77056e504f

Co-authored-by: printminion-co <145785698+printminion-co@users.noreply.github.com>
Signed-off-by: Misha M.-Kupriyanov <kupriyanov@strato.de>

Author: Copilot

.github/scripts/detect-app-cache.sh

@@ -210,6 +210,7 @@ while IFS= read -r app_json; do
   # Check JFrog first before GitHub cache (available for all branches)
   if [ "$JFROG_AVAILABLE" == "true" ]; then
     JFROG_PATH="${ARTIFACTORY_REPOSITORY_SNAPSHOT}/apps/${CACHE_VERSION}/${APP_NAME}/${APP_NAME}-${ARCHIVE_SUFFIX}.tar.gz"
+    FOUND_IN_JFROG="false"
 
     echo ""
     echo "  🔍 Checking JFrog for $APP_NAME..."
@@ -231,7 +232,7 @@ while IFS= read -r app_json; do
         APPS_TO_RESTORE_COUNT=$((APPS_TO_RESTORE_COUNT + 1))
         # Add to restore list with JFrog source
         APPS_TO_RESTORE=$(echo "$APPS_TO_RESTORE" | jq -c --argjson app "$app_json" --arg sha "$CURRENT_SHA" --arg jfrog_path "$JFROG_PATH" --arg source "jfrog" '. + [($app + {sha: $sha, jfrog_path: $jfrog_path, source: $source})]')
-        continue
+        FOUND_IN_JFROG="true"
       else
         echo "     ✗ Artifact not found in search results"
       fi
@@ -240,6 +241,11 @@ while IFS= read -r app_json; do
       echo "     ✗ Search failed with error:"
       echo "$SEARCH_OUTPUT" | sed 's/^/       /'
     fi
+
+    if [ "$FOUND_IN_JFROG" == "true" ]; then
+      continue
+    fi
+
     echo "⚡ needs build (JFrog miss)"
     echo "| $APP_NAME | \`$SHORT_SHA\` | \`$JFROG_PATH\` | 🔨 Needs build (not in JFrog) |" >> "$GITHUB_STEP_SUMMARY"
     APPS_TO_BUILD=$(echo "$APPS_TO_BUILD" | jq -c \