feat: complete placement analysis workflow

src/lib/engine/memory.ts

@@ -0,0 +1,15 @@
+export type MemoryCollectionEffect = {
+  count: number;
+  permil: number;
+};
+
+export function memoryParameterPermil(
+  count: number,
+  effects: readonly MemoryCollectionEffect[]
+): number {
+  const owned = Math.max(0, Math.floor(Number.isFinite(count) ? count : 0));
+  return effects.reduce(
+    (rate, effect) => effect.count <= owned && effect.permil > rate ? effect.permil : rate,
+    0
+  );
+}