feat: 将干扰CSV输出改为GBK

tests/test_pipeline.py

@@ -38,7 +38,11 @@ class PipelineTest(unittest.TestCase):
             self.assertEqual(result.name, TARGET_KEY)
             converted = sorted((result / "converted").glob("*.csv"))
             self.assertEqual(len(converted), 7)
-            with (result / f"interference_summary_{TARGET_KEY}.csv").open(encoding="utf-8-sig", newline="") as file:
+            summary_path = result / f"interference_summary_{TARGET_KEY}.csv"
+            summary_bytes = summary_path.read_bytes()
+            self.assertFalse(summary_bytes.startswith(b"\xef\xbb\xbf"))
+            self.assertIn("小区".encode("gbk"), summary_bytes)
+            with summary_path.open(encoding="gbk", newline="") as file:
                 rows = list(csv.DictReader(file))
             self.assertEqual(len(rows), 7)
             self.assertEqual(
@@ -94,7 +98,7 @@ class PipelineTest(unittest.TestCase):
             self.assertEqual(manifest["database"]["metric_time"], "2026-07-31 10:00:00")
             self.assertEqual(len(store.rows), 7)
             self.assertEqual(history.path, "/history/2026-07-31/干扰数据处理结果_20260731100000.csv")
-            archived_rows = list(csv.DictReader(io.StringIO(history.payload.decode("utf-8-sig"))))
+            archived_rows = list(csv.DictReader(io.StringIO(history.payload.decode("gbk"))))
             self.assertEqual(list(archived_rows[0]), list(main.SUMMARY_HEADER))
             self.assertEqual(len(archived_rows), 7)
 
@@ -321,7 +325,7 @@ class PipelineTest(unittest.TestCase):
             self.assertIsNone(result)
             self.assertEqual(store.rows_for_time_calls, 1)
             self.assertEqual(history.path, "/history/2026-07-31/干扰数据处理结果_20260731100000.csv")
-            archived_rows = list(csv.DictReader(io.StringIO(history.payload.decode("utf-8-sig"))))
+            archived_rows = list(csv.DictReader(io.StringIO(history.payload.decode("gbk"))))
             self.assertEqual(archived_rows, [stored_row])
 
     def test_api_history_store_creates_date_directory_and_uploads_csv(self) -> None: