Tables with different row counts compare equal

### Feature Summary

`Table.__eq__` compares rows with `zip`, which stops at the shorter input. Tables with the same prefix but different row counts therefore compare equal in both directions.

Before: compare one row with two rows -> zip checks only the shared prefix -> equality returns true

After: compare row counts first -> different-sized tables return false

Expected behavior:

Tables with different row counts should not compare equal, even when every row in the shorter table matches the longer table's prefix.

Reproduction evidence:

Compare `Table([{"x": 1}])` with `Table([{"x": 1}, {"x": 2}])`.

Observed on `70c21145887920528d7d5540e3fb790b43e8b759`:

```text
short_equals_long=True
long_equals_short=True
short_equals_different=False
lengths=1 2
```

Version and commit evidence:

1.3.0-incubating-SNAPSHOT (main)

**Commit Hash (Optional)**

`70c21145887920528d7d5540e3fb790b43e8b759`

### Proposed Solution or Design

After: compare row counts first -> different-sized tables return false

Expected behavior:

### Affected Area

Workflow Engine (Amber)