perf(core): short-circuit subTokens/resolveStates/wrapStates when world has no tokens/states (oracle 61->47ms, 270/270)

Author: MesTTo

packages/core/src/eval.ts

@@ -242,6 +242,7 @@ function spaceName(w: World, a: Atom): string | undefined {
   return r.kind === "sym" ? r.name : undefined;
 }
 function resolveStates(w: World, a: Atom): Atom {
+  if (w.store.size === 0) return a; // no state cells: identity, skip the tree clone (hot path)
   if (a.kind === "expr") {
     if (opOf(a) === "State" && a.items.length === 2) {
       const g = a.items[1]!;
@@ -252,11 +253,13 @@ function resolveStates(w: World, a: Atom): Atom {
   return a;
 }
 function subTokens(w: World, a: Atom): Atom {
+  if (w.tokens.size === 0) return a; // no bind! tokens: identity, skip the tree clone (hot path)
   if (a.kind === "sym") return w.tokens.get(a.name) ?? a;
   if (a.kind === "expr") return expr(a.items.map((x) => subTokens(w, x)));
   return a;
 }
 function wrapStates(w: World, a: Atom): Atom {
+  if (w.store.size === 0) return a; // no state cells: identity, skip the tree clone (hot path)
   if (a.kind === "expr") {
     if (opOf(a) === "State" && a.items.length === 2) {
       const g = a.items[1]!;