Remove service image overrides from kustomization - use base manifest tags [skip ci]

infrastructure/cicd/tekton-helm/templates/task-detect-changes.yaml

@@ -50,7 +50,7 @@ spec:
         if [ "$COMMIT_COUNT" -lt 2 ]; then
           echo "Not enough git history for change detection (need at least 2 commits)"
           echo "Building all services as fallback"
-          echo "all" > $(results.changed-services.path)
+          echo -n "all" > $(results.changed-services.path)
           exit 0
         fi
 
@@ -60,7 +60,7 @@ spec:
         if [ -z "$CHANGED_FILES" ]; then
           # Empty commit or something unusual - skip build
           echo "No file changes detected in last commit"
-          echo "infrastructure" > $(results.changed-services.path)
+          echo -n "infrastructure" > $(results.changed-services.path)
           exit 0
         fi
 
@@ -106,15 +106,17 @@ spec:
         # shared/ contains code used by services and gateway (NOT frontend), so rebuild them
         if echo "$CHANGED_FILES" | grep -q '^shared/'; then
           echo "Detected changes in shared/ - triggering rebuild of all services and gateway"
-          echo "services-and-gateway" > $(results.changed-services.path)
+          echo -n "services-and-gateway" > $(results.changed-services.path)
           exit 0
         fi
 
+        # IMPORTANT: Use echo -n (no newline) to avoid trailing newline in results
+        # Trailing newlines cause Tekton when expressions to fail matching
         if [ -z "$CHANGED_SERVICES" ]; then
           # Changes are in infrastructure or other non-service files
           echo "Detected: infrastructure changes only"
-          echo "infrastructure" > $(results.changed-services.path)
+          echo -n "infrastructure" > $(results.changed-services.path)
         else
           echo "Detected changed services: $CHANGED_SERVICES"
-          echo "$CHANGED_SERVICES" > $(results.changed-services.path)
+          echo -n "$CHANGED_SERVICES" > $(results.changed-services.path)
         fi