Limit OCR runtime threads

tests/test_jwebot_edge.py

@@ -867,9 +867,9 @@ class LedgerAndApplicationTests(unittest.TestCase):
         self.assertEqual(version["route"], "local")
         self.assertIn("JWeBot 版本", version["text"])
         self.assertIn("kernel", version["text"])
-        self.assertIn("最新版本：beta 1.0.0.1016", version["text"])
+        self.assertIn("最新版本：beta 1.0.1.1016", version["text"])
         self.assertIn("更新时间：2026-10-16", version["text"])
-        self.assertIn("更新摘要：Promote JWeBot", version["text"])
+        self.assertIn("更新摘要：Limit RapidOCR", version["text"])
         self.assertEqual(debug["route"], "local")
         self.assertIn("调试埋点", debug["text"])
         self.assertEqual(balance["route"], "local")

tests/test_wechat_local_ocr.py

@@ -4,6 +4,7 @@ import importlib.util
 import subprocess
 import sys
 import tempfile
+import types
 import unittest
 from contextlib import nullcontext
 from datetime import datetime, timezone
@@ -517,6 +518,56 @@ class GuiCoordinationTests(unittest.TestCase):
 
 
 class OcrFallbackTests(unittest.TestCase):
+    def test_ocr_engine_limits_onnxruntime_threads_by_default(self):
+        captured = {}
+
+        class FakeRapidOCR:
+            def __init__(self, **kwargs):
+                captured.update(kwargs)
+
+        fake_module = types.SimpleNamespace(RapidOCR=FakeRapidOCR)
+        with mock.patch.dict(sys.modules, {"rapidocr": fake_module}), mock.patch.dict(
+            MODULE.os.environ,
+            {
+                "WECHAT_OCR_ONNX_INTRA_OP_THREADS": "",
+                "WECHAT_OCR_ONNX_INTER_OP_THREADS": "",
+            },
+        ):
+            MODULE.OcrEngine()
+
+        self.assertEqual(
+            captured["params"],
+            {
+                "EngineConfig.onnxruntime.intra_op_num_threads": 1,
+                "EngineConfig.onnxruntime.inter_op_num_threads": 1,
+            },
+        )
+
+    def test_ocr_engine_allows_thread_limit_overrides(self):
+        captured = {}
+
+        class FakeRapidOCR:
+            def __init__(self, **kwargs):
+                captured.update(kwargs)
+
+        fake_module = types.SimpleNamespace(RapidOCR=FakeRapidOCR)
+        with mock.patch.dict(sys.modules, {"rapidocr": fake_module}), mock.patch.dict(
+            MODULE.os.environ,
+            {
+                "WECHAT_OCR_ONNX_INTRA_OP_THREADS": "2",
+                "WECHAT_OCR_ONNX_INTER_OP_THREADS": "3",
+            },
+        ):
+            MODULE.OcrEngine()
+
+        self.assertEqual(
+            captured["params"],
+            {
+                "EngineConfig.onnxruntime.intra_op_num_threads": 2,
+                "EngineConfig.onnxruntime.inter_op_num_threads": 3,
+            },
+        )
+
     def test_low_confidence_line_uses_detection_fallback(self):
         engine = MODULE.OcrEngine.__new__(MODULE.OcrEngine)
         bubble = MODULE.Bubble(50, 50, 132, 68, 5000)