fix(input): restore original nudge and tilt behavior

Replace the float nudge direction, cooldown, and decaying meter with the
scan-code-specific Win16 behavior. Left Shift and keypad 3 now use the original
random directional impulse, while Space uses the reconstructed random horizontal
and vertical formulas with scalar 15 and wrapping millipixel velocities.

Track the original 16-bit tilt counter: each nudge adds 25, compares against
30 + Random(10), and the selected detail timer decrements a nonzero counter once
per callback. Allow the same input while a ball waits in the launcher, retain
bonus state when tilt latches, clear flippers immediately, and keep Right Shift
only as a documented modern alias for keypad 3.

Test Plan:
- `cargo test --all-targets` -- passed, 57 tests
- `cargo clippy --all-targets -- -D warnings` -- passed
- `rumdl check tdkpin-rs/CHANGELOG.md tdkpin-rs/README.md tdkpin-rs/RECONSTRUCTION.md` -- passed
- `git diff --cached --check` -- passed

tdkpin-rs/src/app.rs

@@ -1,6 +1,6 @@
 use crate::{
     assets::Assets,
-    game::{Controls, Event, Game},
+    game::{Controls, Event, Game, Nudge},
     persistence::{HighScore, Language, Persistence, SavedData, insert_high_score},
     table::BUMPERS,
 };
@@ -174,21 +174,13 @@ impl App {
             || is_key_down(KeyCode::D)
             || is_key_down(KeyCode::Right);
         let nudge = if is_key_pressed(KeyCode::LeftShift) {
-            -1.0
+            Nudge::Left
         } else if is_key_pressed(KeyCode::RightShift) || is_key_pressed(KeyCode::Kp3) {
-            1.0
+            Nudge::Right
         } else if is_key_pressed(KeyCode::Space) {
-            if self
-                .game
-                .as_ref()
-                .is_some_and(|game| game.ball.position.x < WIDTH / 4.0)
-            {
-                1.0
-            } else {
-                -1.0
-            }
+            Nudge::Center
         } else {
-            0.0
+            Nudge::None
         };
         let controls = Controls {
             left_flipper,