fix: move to_native to top of file to guarantee scope and prevent NameError

dashboard/app.py

@@ -31,6 +31,27 @@ SPECIES_DISPLAY_NAMES = {
     'species_B': 'Avicennia germinans'
 }
 
+def to_native(obj):
+    if isinstance(obj, pd.DataFrame):
+        obj = obj.applymap(lambda x: to_native(x))
+        obj.index = obj.index.map(to_native)
+        obj.columns = obj.columns.map(to_native)
+        return obj
+    elif isinstance(obj, pd.Series):
+        obj = obj.map(to_native)
+        obj.index = obj.index.map(to_native)
+        return obj
+    elif isinstance(obj, dict):
+        return {to_native(k): to_native(v) for k, v in obj.items()}
+    elif isinstance(obj, list):
+        return [to_native(x) for x in obj]
+    elif isinstance(obj, tuple):
+        return tuple(to_native(x) for x in obj)
+    elif isinstance(obj, (np.generic, np.ndarray)):
+        return obj.item() if obj.size == 1 else obj.tolist()
+    else:
+        return obj
+
 # Helper to update planting schedule in a config file
 def update_planting_schedule(config_path, year_areas):
     with open(config_path) as f: