Export NodeInfo from dqlitewire.messages for API completeness

NodeInfo is returned by ServersResponse.nodes but was not importable from
dqlitewire.messages, forcing users to reach into the private
dqlitewire.messages.responses module path.

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

Author: antoineleclair

src/dqlitewire/messages/__init__.py

@@ -30,6 +30,7 @@
     FilesResponse,
     LeaderResponse,
     MetadataResponse,
+    NodeInfo,
     ResultResponse,
     RowsResponse,
     ServersResponse,
@@ -74,4 +75,5 @@
     "FilesResponse",
     "ServersResponse",
     "MetadataResponse",
+    "NodeInfo",
 ]

tests/test_constants.py

@@ -117,3 +117,17 @@ def test_connect_is_11(self) -> None:
         should include it.
         """
         assert RequestType.CONNECT == 11
+
+
+class TestPublicExports:
+    """Verify important types are importable from public API paths."""
+
+    def test_nodeinfo_importable_from_messages(self) -> None:
+        """NodeInfo should be importable from dqlitewire.messages."""
+        from dqlitewire.messages import NodeInfo
+
+        assert NodeInfo is not None
+        # Verify it's the same class used by ServersResponse
+        from dqlitewire.messages.responses import NodeInfo as DirectNodeInfo
+
+        assert NodeInfo is DirectNodeInfo