高温氦气物性补全；三通四通能量计算bug修正

tests/test_native_cache_storage.py

@@ -34,7 +34,10 @@ class NativeCacheStorageTests(unittest.TestCase):
         path = self.cache / kind / key(number)
         path.mkdir(parents=True)
         (path / "artifact").write_bytes(b"x" * size)
-        os.utime(path, ns=(1_000_000_000 + age, 1_000_000_000 + age))
+        # Windows rounds the former 1 ns age differences to the same timestamp,
+        # changing LRU order to key order and bypassing the intended lock clash.
+        timestamp = (1 + age) * 1_000_000_000
+        os.utime(path, ns=(timestamp, timestamp))
         return path
 
     def lease(self, number: int, **kwargs):
@@ -235,7 +238,9 @@ with acquire_cache_lease(Path(sys.argv[1]), 'models', sys.argv[2], exclusive=Tru
         self.assertTrue(all(path.stat().st_size == 0 for path in (self.cache / ".locks").iterdir()))
         colliding = self.entry(128, 60, 1)
         other = self.entry(1, 60, 2)
+        self.assertLess(colliding.stat().st_mtime_ns, other.stat().st_mtime_ns)
         self.lease(0)
+        self.assertIsNone(self.lease(128, exclusive=True, blocking=False))
         report = storage.prune_cache(self.cache, model_limit_bytes=60)
         self.assertTrue(colliding.exists())
         self.assertFalse(other.exists())