Initial commit, 90% there

.claude/file-history/138484f6-474d-4740-8791-b8f49f53e200/328c6de487a0fc1a@v2

@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+import json
+
+with open('/home/mdares/.node-red/flows.json', 'r') as f:
+    flows = json.load(f)
+
+# selectRange function
+select_range_func = '''
+  // Filter range selection
+  scope.currentFilter = '24h'; // Default filter
+
+  scope.selectRange = function(range) {
+    scope.currentFilter = range;
+    scope.refreshGraphData();
+  };
+'''
+
+for node in flows:
+    if node.get('id') == 'f3a4b5c6d7e8f9a0':
+        template = node.get('format', '')
+
+        if 'scope.selectRange' in template:
+            print("✓ selectRange function already exists")
+        else:
+            # Add before refreshGraphData function (which we added earlier)
+            if 'scope.refreshGraphData' in template:
+                insert_pos = template.find('scope.refreshGraphData')
+                template = template[:insert_pos] + select_range_func + '\n  ' + template[insert_pos:]
+                node['format'] = template
+                print("✓ Added selectRange function")
+            else:
+                print("✗ Could not find refreshGraphData to insert before")
+        break
+
+with open('/home/mdares/.node-red/flows.json', 'w') as f:
+    json.dump(flows, f, indent=4)
+
+print("✓ flows.json updated")