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/slidev/references/code-twoslash.md

@@ -0,0 +1,42 @@
+---
+name: twoslash
+description: Show TypeScript type information inline or on hover in code blocks
+---
+
+# TwoSlash Integration
+
+Show TypeScript type information inline or on hover.
+
+## Usage
+
+````md
+```ts twoslash
+import { ref } from 'vue'
+
+const count = ref(0)
+//            ^?
+```
+````
+
+## Features
+
+- Type information on hover
+- Inline type annotations with `^?`
+- Errors and warnings display
+- Full TypeScript compiler integration
+
+## Annotations
+
+```ts twoslash
+const count = ref(0)
+//            ^?
+// Shows: const count: Ref<number>
+```
+
+## Use Case
+
+Perfect for TypeScript/JavaScript teaching materials where showing types helps understanding.
+
+## Resources
+
+- TwoSlash docs: https://twoslash.netlify.app/