fix(multiball): clear record 148 contact on respawn

The required-effect word at 1028:399a is record 148's +0x43 contact field.
The original special respawn clears that exact word before suppressing the
capture gate. Rust reset only its derived multiball state and left contact 2
behind, allowing a synthetic type-three rim candidate after respawn.

Clear record_contacts[148] with the derived state. Extend both armed and active
multiball respawn regressions to begin with the binary's contact sentinel and
prove that the transition removes it.

Test Plan:
- `cargo test --workspace --all-targets --all-features` -- 118 passed
- `cargo clippy --workspace --all-targets --all-features -- -D warnings` -- passed
- `rumdl check --flavor commonmark CHANGELOG.md` -- passed
- `git diff --cached --check` -- passed

tdkpin-rs/CHANGELOG.md

@@ -19,8 +19,9 @@ and this project adheres to
   full normal velocity instead of always subtracting 1,000.
 - Restore `1000:ae6e`'s required-ball special respawn: armed or completed
   effect-seven play grants one final `(17,23)/(0,3040)` ball without consuming
-  a marker, clears required state, and suppresses record 148 until the next
+  a marker, clears required state including record 148's contact word, and
-  broadphase-active type-4 record reenables it.
+  suppresses record 148 until the next broadphase-active type-4 record
+  reenables it.
 - Replace the invented post-move `y>470` fallback with the original pre-scan
   prediction bounds `x<=0 || x>340000 || y<=0 || y>460000`, including
   one-slot removal during multiball and next-substep handling after a response.

tdkpin-rs/src/game.rs

@@ -2054,6 +2054,7 @@ impl Game {
                 capture_age: 0,
             };
             self.multiball_state = MultiballState::Unavailable;
+            self.record_contacts[148] = 0;
             self.wheel_reset_gate = WheelResetGate::Suppressed;
             return;
         }
@@ -2747,6 +2748,7 @@ mod tests {
         let mut game = Game::new_with_seed(1, 7);
         let mut events = Vec::new();
         game.multiball_state = MultiballState::Ready;
+        game.record_contacts[148] = 2;
         game.apply_wall_rule(84, &mut events);
         assert_eq!(game.target_effect, 7);
 
@@ -2789,6 +2791,7 @@ mod tests {
             MilliVec { x: 0, y: 3_040 }
         );
         assert_eq!(game.multiball_state, MultiballState::Unavailable);
+        assert_eq!(game.record_contacts[148], 0);
         assert_eq!(game.wheel_reset_gate, WheelResetGate::Suppressed);
 
         game.fixed_update(&mut events);
@@ -2847,6 +2850,7 @@ mod tests {
     fn armed_effect_seven_also_special_respawns_before_multiball_starts() {
         let mut game = Game::new(1);
         game.multiball_state = MultiballState::Ready;
+        game.record_contacts[148] = 2;
         let balls = game.player().balls;
         let mut events = Vec::new();
 
@@ -2856,6 +2860,7 @@ mod tests {
         assert_eq!(game.player().balls, balls);
         assert_eq!(game.ball.position, vec2(17.0, 23.0));
         assert_eq!(game.multiball_state, MultiballState::Unavailable);
+        assert_eq!(game.record_contacts[148], 0);
         assert_eq!(game.wheel_reset_gate, WheelResetGate::Suppressed);
     }