fix: correct BOOLEAN test to use uint64 matching actual implementation

The test docstring said "int64 (putInt64/getInt64)" and used
decode_int64, but the implementation uses encode_uint64/decode_uint64.
Updated test name, docstring, and assertions to use decode_uint64,
matching the C server's uint64_t boolean encoding.

Closes #126

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: antoineleclair

tests/test_types.py

@@ -315,20 +315,19 @@ def test_encode_none(self) -> None:
     def test_encode_bool_true(self) -> None:
         encoded, vtype = encode_value(True)
         assert vtype == ValueType.BOOLEAN
-        assert decode_int64(encoded) == 1
+        assert decode_uint64(encoded) == 1
 
     def test_encode_bool_false(self) -> None:
         encoded, vtype = encode_value(False)
         assert vtype == ValueType.BOOLEAN
-        assert decode_int64(encoded) == 0
+        assert decode_uint64(encoded) == 0
 
-    def test_boolean_uses_int64_encoding(self) -> None:
-        """Go reference encodes BOOLEAN as int64 (putInt64/getInt64)."""
+    def test_boolean_uses_uint64_encoding(self) -> None:
+        """BOOLEAN encodes as uint64 (0 or 1), matching C server's uint64_t."""
         encoded_true, _ = encode_value(True, ValueType.BOOLEAN)
         encoded_false, _ = encode_value(False, ValueType.BOOLEAN)
-        # Must be decodable as int64 (signed), matching Go's putInt64
-        assert decode_int64(encoded_true) == 1
-        assert decode_int64(encoded_false) == 0
+        assert decode_uint64(encoded_true) == 1
+        assert decode_uint64(encoded_false) == 0
 
     def test_boolean_explicit_rejects_non_bool_non_int(self) -> None:
         """encode_value with explicit BOOLEAN should reject non-bool/int types."""