feat(stdlib): add immutable array ops, deep set, and isEqual comparator

Adds arrays/{move,insert,swap,remove}, collections/set, and comparators/isEqual (NaN/Date/RegExp/Map/Set/cycle-safe), wired into the barrels.

core/stdlib/src/text/levenshtein-distance/index.ts

@@ -31,7 +31,7 @@ export function levenshteinDistance(left: string, right: string): number {
 
     for (let j = 1; j <= innerLength; j++) {
       const cost = outerChar === inner[j - 1] ? 0 : 1;
-      current[j]! = Math.min(
+      current[j] = Math.min(
         prev[j]! + 1, // insertion
         current[j - 1]! + 1, // deletion
         prev[j - 1]! + cost, // substitution

core/stdlib/src/text/template/index.ts

@@ -15,7 +15,7 @@ export type TemplateFallback = string | ((key: string) => string);
 /**
  * Type of a template string with placeholders.
  */
-const TEMPLATE_PLACEHOLDER = /\{\s*([^{}]+?)\s*\}/gm;
+const TEMPLATE_PLACEHOLDER = /\{([^{}]+)\}/g;
 
 /**
  * Removes the placeholder syntax from a template string.
@@ -82,8 +82,8 @@ export function templateObject<
   T extends string,
   A extends GenerateTypes<ExtractPlaceholders<T>, TemplateValue> & Collection,
 >(template: T, args: A, fallback?: TemplateFallback): string {
-  return template.replace(TEMPLATE_PLACEHOLDER, (_match, key: string) => {
-    const value = get(args, key);
+  return template.replaceAll(TEMPLATE_PLACEHOLDER, (_match, key: string) => {
+    const value = get(args, key.trim());
 
     if (value !== null && value !== undefined)
       return String(value);