feat(tools): collapse const-union enums in tool schemas (#10577)

Co-authored-by: Filip Kujawa <filip.j.kujawa@gmail.com>

crates/goose/src/agents/extension_manager.rs

@@ -1438,6 +1438,13 @@ impl ExtensionManager {
                             tool.name = public_name.into();
                             tool.meta = Some(rmcp::model::Meta(meta_map));
 
+                            let mut schema = (*tool.input_schema).clone();
+                            if super::tool_schema_normalize::normalize_input_schema(
+                                &mut schema,
+                            ) {
+                                tool.input_schema = Arc::new(schema);
+                            }
+
                             tools.push(tool);
                         }
                     }

crates/goose/src/agents/mod.rs

@@ -19,6 +19,7 @@ pub(crate) mod subagent_handler;
 pub(crate) mod subagent_task_config;
 mod tool_confirmation_router;
 mod tool_execution;
+mod tool_schema_normalize;
 pub mod types;
 pub mod validate_extensions;