refactor(toolkit): type source any with proper types

Genuinely type composable any usages (useStepper/useStorage/useForm/
createEventHook/useSorted/etc.) as proper generics/unknown; keep idiomatic
any-function and overload-impl signatures with comments; skipped test -> .todo.

vue/toolkit/src/composables/browser/useMediaQuery/index.ts

@@ -5,6 +5,7 @@ import { defaultWindow } from '@/types';
 import type { ConfigurableWindow } from '@/types';
 import { useSupported } from '@/composables/utilities/useSupported';
 import { useEventListener } from '@/composables/browser/useEventListener';
+import { pxValue } from '@robonen/platform/browsers';
 
 export interface UseMediaQueryOptions extends ConfigurableWindow {
   /**
@@ -20,22 +21,6 @@ export interface UseMediaQueryOptions extends ConfigurableWindow {
   ssrWidth?: number;
 }
 
-/**
- * Convert a CSS length token (e.g. `"1024px"`, `"48em"`, `"30rem"`) to pixels.
- * Falls back to treating `em`/`rem` as the conventional 16px root size.
- */
-function pxValue(value: string): number {
-  const number = Number.parseFloat(value);
-
-  if (Number.isNaN(number))
-    return Number.NaN;
-
-  if (/(?:em|rem)\s*$/i.test(value))
-    return number * 16;
-
-  return number;
-}
-
 /**
  * Best-effort evaluation of `min-width` / `max-width` media queries against a
  * known viewport width, for SSR. Comma-separated queries are OR-combined and