[🚧] Parse exceptions in optional command parameters are silently swallowed

[MarkL4YG]

When a user provides an optional command parameter, any thrown exception is ignored. This causes unintended behavior with syntactical errors:
For example, numeric inputs silently fail when the provided number is exceeding the integer range.
Instead, the matcher should be allowed to indicate its willingness but inability to consume the parameter, causing an error to be reported to the user.