test(gateway): cover misspelled gateway block at load time (#3050)

Adds load_gateway_config integration coverage for the #3050 validation
path and documents load-time gateway block checks in the example.

Supersedes #3060; core fix landed in #3079.

Co-authored-by: botbikamordehai2-sketch <[email protected]>

examples/python/gateway_example.py

@@ -7,7 +7,8 @@ multiple agents and managing real-time communication.
 
 from praisonaiagents import Agent, GatewayConfig, SessionConfig
 
-# Configure the gateway
+# Configure the gateway using the typed SDK GatewayConfig.
+# In gateway.yaml, the optional ``gateway:`` block is validated at load time (#3050).
 gateway_config = GatewayConfig(
     host="127.0.0.1",
     port=8765,

src/praisonai/tests/integration/test_websocket_integration.py

@@ -134,6 +134,24 @@ class TestWebSocketIntegration:
         assert "channels" in cfg
         assert cfg["channels"]["telegram"]["token"] == "test123"
 
+    @pytest.mark.asyncio
+    async def test_gateway_config_rejects_misspelled_server_block(self, tmp_path):
+        """Misspelled ``gateway:`` server settings fail at load time (#3050)."""
+        try:
+            from praisonai.gateway.server import WebSocketGateway
+        except ImportError:
+            pytest.skip("praisonai.gateway not available")
+
+        bad_config = tmp_path / "bad.yaml"
+        bad_config.write_text(
+            "agents:\n  bot:\n    instructions: hi\n"
+            "channels:\n  telegram:\n    token: test123\n"
+            "gateway:\n  drain_timout: 30\n"
+        )
+
+        with pytest.raises(ValueError, match="drain_timout"):
+            WebSocketGateway.load_gateway_config(str(bad_config))
+
     @pytest.mark.asyncio
     async def test_websocket_connect_and_message(self):
         """Test actual WebSocket connection to gateway server.