Bug: DevTools single-string console formatter consumes missing substitution arguments

React version: Current main (b685b40d)

Steps To Reproduce

1. Call the DevTools helper with more substitution specifiers than arguments:

formatConsoleArgumentsToSingleString('%s %s', 'value');
formatConsoleArgumentsToSingleString('%d %d', 1);

1. Observe the returned strings.

Link to code example:

https://github.com/react/react/blob/b685b40d9a719bee47422283fd86b5db2e4753ea/packages/react-devtools-shared/src/backend/utils/index.js#L185-L233

The current behavior

The helper shifts from an empty arguments array for the unmatched specifier, so it returns value undefined and 1 NaN.

This helper is used to build the message key for warnings and errors logged during render, commit, and passive effects. As a result, DevTools can track a different message from the one produced by the console.

The expected behavior

Unmatched specifiers should remain literal, matching browser console behavior and Node util.format:

value %s
1 %d

The sibling formatConsoleArguments helper was updated with this behavior in #36930, but formatConsoleArgumentsToSingleString still consumes a missing argument.