Chore: Restructure Repository for SvelteKit

_old/core/algorithms/paginate.ts

@@ -0,0 +1,29 @@
+export interface PaginationState {
+  visible: number;
+}
+
+export interface PaginationResult<T> {
+  items: T[];
+  hasMore: boolean;
+  remaining: number;
+}
+
+export function createPaginator<T>(pageSize: number) {
+  return {
+    slice(all: T[], visible: number): PaginationResult<T> {
+      return {
+        items:     all.slice(0, visible),
+        hasMore:   all.length > visible,
+        remaining: Math.max(0, all.length - visible),
+      };
+    },
+
+    nextVisible(current: number): number {
+      return current + pageSize;
+    },
+
+    reset(): number {
+      return pageSize;
+    },
+  };
+}