Add ExpectThrows methods for exception assertion in console tests

[Copilot]

Testing console methods that throw exceptions currently requires wrapping ConsoleAssert.Expect in try/catch blocks and manually tracking flags. This adds ExpectThrows and ExpectThrowsAsync to streamline exception assertions.

Changes

• New Methods

  • ExpectThrows<TException> - validates console output and captures expected exception
  • ExpectThrowsAsync<TException> - async variant
  • Both return the caught exception for additional assertions
  • Support NormalizeOptions parameter consistent with existing Expect methods

• Tests

  • Exception capture (sync/async)
  • Assertion failure when no exception thrown
  • Assertion failure when wrong exception type thrown
  • Normalization options support

Example

Before:

bool flag = false;
try
{
    ConsoleAssert.Expect(view, () => { ExceptionHandling.Main(); });
}
catch (FormatException)
{
    flag = true;
}
Assert.IsTrue(flag);

After:

var exception = ConsoleAssert.ExpectThrows<FormatException>(view, 
    () => { ExceptionHandling.Main(); });

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Implement ExpectThrows</issue_title>
<issue_description>Currently to do assertions on throwing methods requires doing a try/catch. It would be nice to mimic other assertion libraries that have a method for asserting on an exception being thrown.

try
{
    IntelliTect.TestTools.Console.ConsoleAssert.Expect(view,
    () =>
    {
        ExceptionHandling.Main();
    });
}
catch (FormatException)
{
    flag = true;
}

Assert.IsTrue(flag);

Would be better written similar to:

IntelliTect.TestTools.Console.ConsoleAssert.ExpectThrows<FormatException>(view,
() =>
{
    ExceptionHandling.Main();
});
```</issue_description>

## Comments on the Issue (you are @copilot in this section)

<comments>
</comments>

• Fixes Implement ExpectThrows #20

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