fix(rules): retain active target rotation across drains

The original timer advances DAT600 target rotation only from active_ball_tick.
A normal ball end does not clear its phase, so a pending rotation pauses while
the next ball waits in the launcher and resumes after launch. Rust advanced the
phase during launcher idle and then discarded it on drain.

Gate rotation updates with the active-ball state and stop clearing rotation,
panel, or claw mechanism state in the normal drain path where the binary leaves
them untouched. Seed the deterministic target scenario with an active ball so
it continues to exercise all six recovered phases.

Test Plan:
- `cargo test --workspace --all-targets --all-features` -- 118 passed
- `cargo clippy --workspace --all-targets --all-features -- -D warnings` -- passed
- `rumdl check --flavor commonmark RECONSTRUCTION.md CHANGELOG.md` -- passed
- `git diff --cached --check` -- passed

tdkpin-rs/CHANGELOG.md

@@ -94,7 +94,8 @@ and this project adheres to
   51-53 and targets 140-147/150-152.
 - Replace the free-running wheel animation with the original six-callback
   91x90 target rotation, WAVE 2011 start, exact DAT600 frames/target positions,
-  and state-6 rotation of the five per-player contact/item values.
+  and state-6 rotation of the five per-player contact/item values. It advances
+  only for an active ball, pauses in the launcher, and survives a normal drain.
 - Restore the complete 281-callback DAT600 panel sequence after the fifth lock
   hole, including physics suspension, contact/item cleanup, all nine image
   phases, and the original WAVE 2013/2012/stop boundaries.