fix(input): restore launcher press and release impulses

The rewrite used a 375-millipixel impulse for both charging and release. The
reconstructed key handlers use the setup scalar 15: every repeated Down keydown
subtracts 15*50, and release subtracts a further 15*100 before clamping.

Use 750-millipixel press increments and the 1,500-millipixel release impulse,
then reproduce the randomized -3800 lower clamp and weak -2280 upper branch.
Derive the ten launcher decoration frames from the original strict multiples of
750 and keep integration/gravity assertions separate from the immediate release
state.

Test Plan:
- `cargo test --all-targets` -- passed, 60 tests
- `cargo clippy --all-targets -- -D warnings` -- passed
- `rumdl check tdkpin-rs/CHANGELOG.md tdkpin-rs/RECONSTRUCTION.md` -- passed
- `git diff --cached --check` -- passed

tdkpin-rs/src/simulation.rs

@@ -409,7 +409,7 @@ mod tests {
         let mut simulation = Simulation::new(Scenario::Launcher, 1);
         simulation.advance_to(60);
         assert!(simulation.game.ball.in_launcher);
-        assert!((0.09..=0.11).contains(&simulation.game.launcher_charge));
+        assert!((0.19..=0.21).contains(&simulation.game.launcher_charge));
 
         simulation.advance_to(121);
         assert!(!simulation.game.ball.in_launcher);