Record attempted tool calls in response metadata (#36181)

## What changed

- Add the opt-in `executed_tool_call_metadata` feature to record model-attempted direct and code-mode tool calls.
- Attach recorded names and arguments to the matching tool output in the next Responses request, preserving the metadata across sampling retries.
- Bound pending calls and argument sizes, and emit truncation metadata when limits are exceeded.

## Testing

- Cover disabled-by-default behavior, namespaced and nested calls, blocked or failed attempts, retry handling, and recorder limits.

GitOrigin-RevId: 5ce917b73e797b0f6904d46477b9d2cf8ea71bf2

codex-rs/core/src/tools/parallel.rs

@@ -97,6 +97,20 @@ impl ToolCallRuntime {
         source: ToolCallSource,
         cancellation_token: CancellationToken,
     ) -> impl std::future::Future<Output = Result<AnyToolResult, FunctionCallError>> {
+        if self
+            .step_context
+            .turn
+            .config
+            .features
+            .enabled(codex_features::Feature::ExecutedToolCallMetadata)
+            && let Some(executed_tool_calls) = self.session.services.executed_tool_calls.as_ref()
+        {
+            executed_tool_calls.record_tool_call(
+                &call,
+                &source,
+                super::effective_tool_mode(&self.step_context.turn),
+            );
+        }
         let supports_parallel = self.router.tool_supports_parallel(&call);
         let tool_runtime = self.router.tool_runtime(&call);
         let router = Arc::clone(&self.router);