feat: Complete fleet — 94 skills across 10+ domains

Pulled ALL skills from 15 source repositories:
- anthropics/skills: 16 (docs, design, MCP, testing)
- obra/superpowers: 14 (TDD, debugging, agents, planning)
- coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth)
- better-auth/skills: 5 (auth patterns)
- vercel-labs/agent-skills: 5 (React, design, Vercel)
- antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo)
- Plus 13 individual skills from various repos

Mosaic Stack is not limited to coding — the Orchestrator and
subagents serve coding, business, design, marketing, writing,
logistics, analysis, and more.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

skills/vueuse-functions/references/useWindowSize.md

@@ -0,0 +1,76 @@
+---
+category: Elements
+---
+
+# useWindowSize
+
+Reactive window size
+
+## Usage
+
+```vue
+<script setup lang="ts">
+import { useWindowSize } from '@vueuse/core'
+
+const { width, height } = useWindowSize()
+</script>
+
+<template>
+  <div>
+    Width: {{ width }}
+    Height: {{ height }}
+  </div>
+</template>
+```
+
+## Component Usage
+
+```vue
+<template>
+  <UseWindowSize v-slot="{ width, height }">
+    Width: {{ width }}
+    Height: {{ height }}
+  </UseWindowSize>
+</template>
+```
+
+## Type Declarations
+
+```ts
+export interface UseWindowSizeOptions extends ConfigurableWindow {
+  initialWidth?: number
+  initialHeight?: number
+  /**
+   * Listen to window `orientationchange` event
+   *
+   * @default true
+   */
+  listenOrientation?: boolean
+  /**
+   * Whether the scrollbar should be included in the width and height
+   * Only effective when `type` is `'inner'`
+   *
+   * @default true
+   */
+  includeScrollbar?: boolean
+  /**
+   * Use `window.innerWidth` or `window.outerWidth` or `window.visualViewport`
+   * visualViewport documentation from MDN(https://developer.mozilla.org/zh-CN/docs/Web/API/VisualViewport)
+   * @default 'inner'
+   */
+  type?: "inner" | "outer" | "visual"
+}
+/**
+ * Reactive window size.
+ *
+ * @see https://vueuse.org/useWindowSize
+ * @param options
+ *
+ * @__NO_SIDE_EFFECTS__
+ */
+export declare function useWindowSize(options?: UseWindowSizeOptions): {
+  width: ShallowRef<number, number>
+  height: ShallowRef<number, number>
+}
+export type UseWindowSizeReturn = ReturnType<typeof useWindowSize>
+```