[Corn Flakes] TypeScript fix flaky test: ensure generateRandomEvenNumber always returns even numbers

[Copilot]

generateRandomEvenNumber() had an intentional 5% flaw that added 1 to the result, causing ~50% of 20-iteration test runs to see at least one failure.

Change

• typescript/src/randomMathOperations.ts: Removed the flawed branch that corrupted the output with a 5% probability.

// Before
generateRandomEvenNumber(): number {
  let number = Math.floor(Math.random() * 51) * 2;
  if (Math.random() < 0.05) {
    number += 1; // intentional flaw
  }
  return number;
}

// After
generateRandomEvenNumber(): number {
  const number = Math.floor(Math.random() * 51) * 2; // always even: 0, 2, 4, ..., 100
  return number;
}