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/useTextSelection.md

@@ -0,0 +1,40 @@
+---
+category: Sensors
+---
+
+# useTextSelection
+
+Reactively track user text selection based on [`Window.getSelection`](https://developer.mozilla.org/en-US/docs/Web/API/Window/getSelection).
+
+## Usage
+
+```vue
+<script setup lang="ts">
+import { useTextSelection } from '@vueuse/core'
+
+const state = useTextSelection()
+</script>
+
+<template>
+  <p>{{ state.text }}</p>
+</template>
+```
+
+## Type Declarations
+
+```ts
+/**
+ * Reactively track user text selection based on [`Window.getSelection`](https://developer.mozilla.org/en-US/docs/Web/API/Window/getSelection).
+ *
+ * @see https://vueuse.org/useTextSelection
+ *
+ * @__NO_SIDE_EFFECTS__
+ */
+export declare function useTextSelection(options?: ConfigurableWindow): {
+  text: ComputedRef<string>
+  rects: ComputedRef<DOMRect[]>
+  ranges: ComputedRef<Range[]>
+  selection: ShallowRef<Selection | null, Selection | null>
+}
+export type UseTextSelectionReturn = ReturnType<typeof useTextSelection>
+```