✅ Vapula healing floors at zero

Category	Ability
Status	Passing
Test	tests/test_abilities_complex.py::TestVapulaDamageToHealing::test_vapula_healing_floors_at_zero

Vapula's passive removes more damage than target has — floors at 0.

Preconditions

• Lane 0: P1's Vapula (#100) — READIED

• Lane 0: P2's Duban (#001) — 0 damage (fully healthy)

Action

• Fire DAMAGE_DEALT for Vapula -> Duban, value=4

Expected Postconditions

• Duban's damage: max(0, 0 - 8) = 0 (stays at 0 — cannot go negative)

Assertions

assert duban_after.damage == 0, (
            f"Damage cannot go below 0. Got {duban_after.damage}."
        )