Map detail levels 1-5 to the recovered 50, 40, 30, 20, and 10 ms callback
periods for claw animation while retaining the invariant 10 ms physics step.
This removes the hard-coded default cadence from non-default configurations.
Keep repaint batching documented separately because Rust exposes intermediate
physics states instead of reproducing Win16 GDI callback batching.
Test Plan:
- `cargo test --all-targets` -- 51 passed
- `cargo clippy --all-targets -- -D warnings` -- passed
- `cargo build --profile production` -- passed
- all five claw cadence boundary tests -- passed
- `git diff --cached --check` -- passed
ddidderr
25e32b2c06