feat(ludic.effects): timed modifiers as a mechanic package; ludic.base's q_new is queue_new

ludic.effects: effects_add / effects_add_after / effects_clear / effects_run,
effects_sum / effects_has / effects_at / effects_live, an EffectEnded queue
(ran out, pushed out by the bonus cap, crowded out of a full ring) and a
System with its own save section. Nine test blocks in tests/effects_test.ludic.

ludic.base: q_new collided with render3d's quaternion q_new the moment a game
imported both, so the queue constructor is queue_new.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/ludic.base/queue.ludic

@@ -16,7 +16,7 @@ function qb_init() -> void {
 }
 
 # a queue; the name is only for core_undrained
-export function q_new<T>(name: string) -> Queue<T> {
+export function queue_new<T>(name: string) -> Queue<T> {
   qb_init()
   let q = new Queue<T>
   q.items = new []T