refactor: thread tool schemas through responses tool outputs

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

internal/httpapi/openai/responses/responses_stream_runtime_toolcalls_finalize.go

@@ -109,7 +109,8 @@ func (s *responsesStreamRuntime) buildCompletedResponseObject(finalThinking, fin
 		}
 	}
 
-	for idx, tc := range calls {
+	normalizedCalls := toolcall.NormalizeParsedToolCallsForSchemas(calls, s.toolsRaw)
+	for idx, tc := range normalizedCalls {
 		if strings.TrimSpace(tc.Name) == "" {
 			continue
 		}