fix(game): restore the original plunger launch

Start each ball at the recovered right-lane coordinates and charge the
plunger while Down is held, firing only on release. Render all eleven frames
of resource 901, preserve object 25 as the returning-ball catch, and use the
object table's center-contact extents without adding the art radius twice.

Test Plan:
- cargo fmt --all -- --check
- cargo test
- cargo clippy --all-targets --all-features -- -D warnings
- runtime smoke: start, hold Down, release, and inspect the right shooter lane

tdkpin-rs/README.md

@@ -36,7 +36,7 @@ command-line tools.
 | Action | Original key | Additional modern key |
 | --- | --- | --- |
 | Choose 1-4 players | `+` | `=` |
-| Start or launch ball | Down arrow | Enter starts a game |
+| Start game / charge launcher | Hold Down arrow, release to launch | Enter starts a game |
 | Left flipper | Left Ctrl | `A` or Left arrow |
 | Right flipper | Keypad Enter | Right Ctrl, `D`, or Right arrow |
 | Nudge | Space, either Shift, keypad `3` | - |