Closes#174
Adds `evaluated_only: bool = Query(default=True)` to `list_card_states()`.
When True (the default), cards with `last_evaluated_at IS NULL` are excluded —
these are placeholder rows created at pack-open time but never run through the
evaluator. At team scale this eliminates ~2739 zero-value rows from the
default response, making the Discord /refractor status command efficient
without any bot-side changes.
Set `evaluated_only=false` to include all rows (admin/pipeline use case).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>