tito10047 / php-calendar / 28450503281

Pull #3

github

refactor: rename count() to limitTo() and add input validation

count() risks a signature clash if RecurrenceRule ever implements \Countable
(\Countable::count() must return int with no parameters).  limitTo(int)
is also more expressive at the call-site.

Guards against limitTo(0) / limitTo(-1): zero or negative occurrences is
almost certainly a caller bug, so we throw \InvalidArgumentException early
rather than silently producing an empty expansion.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

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