Remove template IDs from MCP tool call metadata (#33467)

## What changed

- Remove `template_id` from MCP tool call items and lifecycle events.
- Remove `templateId` from app-server `McpToolCallAppContext` responses and generated schemas.
- Update protocol conversions, documentation, and existing test expectations for the revised metadata shape.

GitOrigin-RevId: f2b1304eadff661eec3966673ea71206b1542b98

codex-rs/analytics/src/analytics_client_tests.rs

@@ -4389,7 +4389,6 @@ async fn turn_event_counts_completed_tool_items() {
             link_id: None,
             resource_uri: None,
             app_name: None,
-            template_id: None,
             action_name: None,
         }),
         mcp_app_resource_uri: None,