fix(game): restore the six-way effect target

Implement the flagged object-84 selector and initially inactive type-4 object
149. Choose a different effect from 1-6, render the enabled target from its
original active-table rectangle, award its static 500 points, then apply the
recovered bonus or cashout action and disable it until reselected.

This replaces the final unimplemented help-screen target effect with its
original dispatcher values.

Test Plan:
- `cargo test --all-targets` -- 49 passed
- `cargo clippy --all-targets -- -D warnings` -- passed
- `cargo build --profile production` -- passed
- live object-84 probe activated record 149 and selected effect 3
- effect selection/consumption test -- passed
- `git diff --cached --check` -- passed

tdkpin-rs/src/table.rs

@@ -333,6 +333,8 @@ pub const LOCK_HOLES: [MechanismSensor; 5] = [
 pub const WHEEL_RESET_SENSOR: MechanismSensor =
     MechanismSensor::new(148, Vec2::new(17.0, 23.0), 19.0);
 
+pub const EFFECT_SENSOR: TargetSensor = TargetSensor::new(149, Vec2::new(68.0, 65.0), 16.0, 500);
+
 #[cfg(test)]
 mod tests {
     use super::*;