fix(timing): decay tilt on detail callbacks

Remove the independent 30 ms tilt accumulator and decrement the wrapping 16-bit counter once at the end of each selected multimedia detail callback. This restores the original 50/40/30/20/10 ms decay cadence across all five settings.

Test Plan:
- cargo test --all-targets
- cargo clippy --all-targets --all-features -- -D warnings
- rumdl check CHANGELOG.md RECONSTRUCTION.md README.md
- git diff --check

tdkpin-rs/CHANGELOG.md

@@ -10,6 +10,8 @@ and this project adheres to
 
 ### Fixed
 
+- Decay the 16-bit tilt counter once per selected 50/40/30/20/10 ms detail
+  callback, replacing an invented independent 30 ms accumulator.
 - Match the multiball nudge path's saved-slot behavior: consume the active
   formula's random draws, then add one shared fixed/random impulse to both slot
   velocity records instead of applying different formulas to each ball.