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/useParallax.md

@@ -0,0 +1,58 @@
+---
+category: Sensors
+---
+
+# useParallax
+
+Create parallax effect easily. It uses `useDeviceOrientation` and fallback to `useMouse` if orientation is not supported.
+
+## Usage
+
+```vue
+<script setup lang="ts">
+import { useParallax } from '@vueuse/core'
+
+const container = ref(null)
+const { tilt, roll, source } = useParallax(container)
+</script>
+
+<template>
+  <div ref="container" />
+</template>
+```
+
+## Type Declarations
+
+```ts
+export interface UseParallaxOptions extends ConfigurableWindow {
+  deviceOrientationTiltAdjust?: (i: number) => number
+  deviceOrientationRollAdjust?: (i: number) => number
+  mouseTiltAdjust?: (i: number) => number
+  mouseRollAdjust?: (i: number) => number
+}
+export interface UseParallaxReturn {
+  /**
+   * Roll value. Scaled to `-0.5 ~ 0.5`
+   */
+  roll: ComputedRef<number>
+  /**
+   * Tilt value. Scaled to `-0.5 ~ 0.5`
+   */
+  tilt: ComputedRef<number>
+  /**
+   * Sensor source, can be `mouse` or `deviceOrientation`
+   */
+  source: ComputedRef<"deviceOrientation" | "mouse">
+}
+/**
+ * Create parallax effect easily. It uses `useDeviceOrientation` and fallback to `useMouse`
+ * if orientation is not supported.
+ *
+ * @param target
+ * @param options
+ */
+export declare function useParallax(
+  target: MaybeElementRef,
+  options?: UseParallaxOptions,
+): UseParallaxReturn
+```