Initial commit with user management

static/js/lib/signals/signals-core.d.ts

@@ -0,0 +1,17 @@
+declare function batch<T>(callback: () => T): T;
+declare class Signal<T = any> {
+    constructor(value?: T);
+    subscribe(fn: (value: T) => void): () => void;
+    valueOf(): T;
+    toString(): string;
+    peek(): T;
+    get value(): T;
+    set value(value: T);
+}
+declare function signal<T>(value: T): Signal<T>;
+interface ReadonlySignal<T = any> extends Signal<T> {
+    readonly value: T;
+}
+declare function computed<T>(compute: () => T): ReadonlySignal<T>;
+declare function effect(compute: () => unknown): () => void;
+export { signal, computed, effect, batch, Signal, ReadonlySignal };