feat: refactored and tweaked model descriptions / schema to use fewer tokens at launch (average reduction per field description: 60-80%) without sacrificing tool effectiveness

Disabled secondary tools by default (for new installations), updated README.md with instructions on how to enable these in .env
run-server.sh now displays disabled / enabled tools (when DISABLED_TOOLS is set)

tests/test_listmodels.py

@@ -21,7 +21,7 @@ class TestListModelsTool:
     def test_tool_metadata(self, tool):
         """Test tool has correct metadata"""
         assert tool.name == "listmodels"
-        assert "LIST AVAILABLE MODELS" in tool.description
+        assert "model providers" in tool.description
         assert tool.get_request_model().__name__ == "ToolRequest"
 
     @pytest.mark.asyncio