Correct the ups_alarm field spelling

The upstream River 3 schema spells field 355 `ups_alram`. Use `ups_alarm` in the decoder, the generated schema, and the field reference. The schema generator now applies a rename map, so a regenerated schema keeps the corrected name.

tests/test_ecoflow_schema.py

@@ -189,6 +189,14 @@ def test_generator_keeps_reachable_types_and_ignores_unrelated_nested_types(gene
     assert 'Unrelated' not in messages
 
 
+def test_generator_corrects_upstream_field_spelling(generator):
+    messages, _ = generator.parse_schema(
+        'message DisplayPropertyUpload { optional bool ups_alram = 355; } message RuntimePropertyUpload {}'
+    )
+    assert messages['DisplayPropertyUpload'][355] == ('ups_alarm', 'bool', False)
+    assert MESSAGES['DisplayPropertyUpload'][355] == ('ups_alarm', 'bool', False)
+
+
 @pytest.mark.parametrize('body', [
     'optional Missing value = 1;',
     'optional uint32 a = 1; optional uint32 b = 1;',