Table Editor shows the wrong row count when filtering by zero

## Bug The Table Editor shows the wrong row count when a number column is filtered by `0`. The rows themselves are filtered correctly, but the count still reflects the full table. For example, if a table has 100 rows and only 8 have `quantity = 0`, the grid shows those 8 rows while the count can still show 100. ## Steps to reproduce 1. Open a table with a number column containing both zero and non-zero values. 2. Add an `equals` filter for that column. 3. Enter `0` and apply the filter. 4. Compare the visible rows with the row count. ## Expected The count should use the same filter as the rows. ## What is happening Studio converts the input string `"0"` to the number `0` before building the count query. The count query then checks the value by truthiness, so it treats `0` as if no value was provided and leaves the filter out. Blank filter values need to remain ignored, since converting an empty string with `Number('')` also produces `0`.