fix(ui): render partial target-bank states

Records 90 through 104 and 109 through 120 deactivate in linked three-line
groups. For each group, the flag-bearing head switches its recovered bounds
from overlay B to overlay A until the complete bank rearms every record. Rust
updated collision activity but never drew these nine intermediate states.

Render the five bumper-bank and four TDK-bank head regions directly from the
175-record ledger. Extend the bank regression to prove partial activation and
post-completion clearing, and seed two partial groups in the deterministic
rules framebuffer.

Test Plan:
- `cargo test --workspace --all-targets --all-features` -- 120 passed
- `cargo clippy --workspace --all-targets --all-features -- -D warnings` -- passed
- `rumdl check --flavor commonmark RECONSTRUCTION.md CHANGELOG.md` -- passed
- `cargo run -- --simulate targets --step 26 --screenshot /tmp/tdkpin-targets-banks.png` -- passed; partial bumper and TDK bank regions visually inspected at 640x460
- `git diff --cached --check` -- passed

tdkpin-rs/src/game.rs

@@ -452,6 +452,16 @@ impl Game {
         }
     }
 
+    pub(crate) fn begin_target_scenario(&mut self) {
+        self.ball.in_launcher = false;
+        self.ball.position = vec2(170.0, 230.0);
+        self.players[0].bumper_value = 6_000;
+        self.wheel_holes = [true, false, true, false, false];
+        self.target_rotation_state = Some(0);
+        self.object_active[90] = false;
+        self.object_active[109] = false;
+    }
+
     fn fire_launcher(&mut self) {
         self.launcher_velocity_milli = self
             .launcher_velocity_milli
@@ -1937,6 +1947,11 @@ impl Game {
         self.object_active[object_id]
     }
 
+    pub fn bank_target_lit(&self, object_id: u8) -> bool {
+        matches!(object_id, 90 | 93 | 96 | 99 | 102 | 109 | 112 | 115 | 118)
+            && !self.object_active[usize::from(object_id)]
+    }
+
     pub fn effect_target_active(&self) -> bool {
         self.object_active[usize::from(EFFECT_SENSOR.id)]
     }
@@ -2630,17 +2645,27 @@ mod tests {
         let mut game = Game::new(1);
         let mut events = Vec::new();
 
-        for object_id in [90, 93, 96, 99, 102] {
+        for object_id in [90, 93, 96, 99] {
             game.apply_wall_rule(object_id, &mut events);
         }
+        assert!(game.bank_target_lit(90));
+        assert!(game.bank_target_lit(99));
+        assert!(!game.bank_target_lit(102));
+        game.apply_wall_rule(102, &mut events);
         assert_eq!(game.player().bumper_value, 2_000);
         assert!(game.object_active[90..=104].iter().all(|active| *active));
+        assert!(!game.bank_target_lit(90));
 
-        for object_id in [109, 112, 115, 118] {
+        for object_id in [109, 112, 115] {
             game.apply_wall_rule(object_id, &mut events);
         }
+        assert!(game.bank_target_lit(109));
+        assert!(game.bank_target_lit(115));
+        assert!(!game.bank_target_lit(118));
+        game.apply_wall_rule(118, &mut events);
         assert_eq!(game.player().diamond_segments, 1);
         assert!(game.object_active[109..=120].iter().all(|active| *active));
+        assert!(!game.bank_target_lit(109));
     }
 
     #[test]