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/vercel-react-native-skills/rules/animation-gpu-properties.md

@@ -0,0 +1,65 @@
+---
+title: Animate Transform and Opacity Instead of Layout Properties
+impact: HIGH
+impactDescription: GPU-accelerated animations, no layout recalculation
+tags: animation, performance, reanimated, transform, opacity
+---
+
+## Animate Transform and Opacity Instead of Layout Properties
+
+Avoid animating `width`, `height`, `top`, `left`, `margin`, or `padding`. These trigger layout recalculation on every frame. Instead, use `transform` (scale, translate) and `opacity` which run on the GPU without triggering layout.
+
+**Incorrect (animates height, triggers layout every frame):**
+
+```tsx
+import Animated, { useAnimatedStyle, withTiming } from 'react-native-reanimated'
+
+function CollapsiblePanel({ expanded }: { expanded: boolean }) {
+  const animatedStyle = useAnimatedStyle(() => ({
+    height: withTiming(expanded ? 200 : 0), // triggers layout on every frame
+    overflow: 'hidden',
+  }))
+
+  return <Animated.View style={animatedStyle}>{children}</Animated.View>
+}
+```
+
+**Correct (animates scaleY, GPU-accelerated):**
+
+```tsx
+import Animated, { useAnimatedStyle, withTiming } from 'react-native-reanimated'
+
+function CollapsiblePanel({ expanded }: { expanded: boolean }) {
+  const animatedStyle = useAnimatedStyle(() => ({
+    transform: [
+      { scaleY: withTiming(expanded ? 1 : 0) },
+    ],
+    opacity: withTiming(expanded ? 1 : 0),
+  }))
+
+  return (
+    <Animated.View style={[{ height: 200, transformOrigin: 'top' }, animatedStyle]}>
+      {children}
+    </Animated.View>
+  )
+}
+```
+
+**Correct (animates translateY for slide animations):**
+
+```tsx
+import Animated, { useAnimatedStyle, withTiming } from 'react-native-reanimated'
+
+function SlideIn({ visible }: { visible: boolean }) {
+  const animatedStyle = useAnimatedStyle(() => ({
+    transform: [
+      { translateY: withTiming(visible ? 0 : 100) },
+    ],
+    opacity: withTiming(visible ? 1 : 0),
+  }))
+
+  return <Animated.View style={animatedStyle}>{children}</Animated.View>
+}
+```
+
+GPU-accelerated properties: `transform` (translate, scale, rotate), `opacity`. Everything else triggers layout.