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/nuxt/references/core-config.md

@@ -0,0 +1,162 @@
+---
+name: configuration
+description: Nuxt configuration files including nuxt.config.ts, app.config.ts, and runtime configuration
+---
+
+# Nuxt Configuration
+
+Nuxt uses configuration files to customize application behavior. The main configuration options are `nuxt.config.ts` for build-time settings and `app.config.ts` for runtime settings.
+
+## nuxt.config.ts
+
+The main configuration file at the root of your project:
+
+```ts
+// nuxt.config.ts
+export default defineNuxtConfig({
+  // Configuration options
+  devtools: { enabled: true },
+  modules: ['@nuxt/ui'],
+})
+```
+
+### Environment Overrides
+
+Configure environment-specific settings:
+
+```ts
+export default defineNuxtConfig({
+  $production: {
+    routeRules: {
+      '/**': { isr: true },
+    },
+  },
+  $development: {
+    // Development-specific config
+  },
+  $env: {
+    staging: {
+      // Staging environment config
+    },
+  },
+})
+```
+
+Use `--envName` flag to select environment: `nuxt build --envName staging`
+
+## Runtime Config
+
+For values that need to be overridden via environment variables:
+
+```ts
+// nuxt.config.ts
+export default defineNuxtConfig({
+  runtimeConfig: {
+    // Server-only keys
+    apiSecret: '123',
+    // Keys within public are exposed to client
+    public: {
+      apiBase: '/api',
+    },
+  },
+})
+```
+
+Override with environment variables:
+
+```ini
+# .env
+NUXT_API_SECRET=api_secret_token
+NUXT_PUBLIC_API_BASE=https://api.example.com
+```
+
+Access in components/composables:
+
+```vue
+<script setup lang="ts">
+const config = useRuntimeConfig()
+// Server: config.apiSecret, config.public.apiBase
+// Client: config.public.apiBase only
+</script>
+```
+
+## App Config
+
+For public tokens determined at build time (not overridable via env vars):
+
+```ts
+// app/app.config.ts
+export default defineAppConfig({
+  title: 'Hello Nuxt',
+  theme: {
+    dark: true,
+    colors: {
+      primary: '#ff0000',
+    },
+  },
+})
+```
+
+Access in components:
+
+```vue
+<script setup lang="ts">
+const appConfig = useAppConfig()
+</script>
+```
+
+## runtimeConfig vs app.config
+
+| Feature | runtimeConfig | app.config |
+|---------|--------------|------------|
+| Client-side | Hydrated | Bundled |
+| Environment variables | Yes | No |
+| Reactive | Yes | Yes |
+| Hot module replacement | No | Yes |
+| Non-primitive JS types | No | Yes |
+
+**Use runtimeConfig** for secrets and values that change per environment.
+**Use app.config** for public tokens, theme settings, and non-sensitive config.
+
+## External Tool Configuration
+
+Nuxt uses `nuxt.config.ts` as single source of truth. Configure external tools within it:
+
+```ts
+export default defineNuxtConfig({
+  // Nitro configuration
+  nitro: {
+    // nitro options
+  },
+  // Vite configuration
+  vite: {
+    // vite options
+    vue: {
+      // @vitejs/plugin-vue options
+    },
+  },
+  // PostCSS configuration
+  postcss: {
+    // postcss options
+  },
+})
+```
+
+## Vue Configuration
+
+Enable Vue experimental features:
+
+```ts
+export default defineNuxtConfig({
+  vue: {
+    propsDestructure: true,
+  },
+})
+```
+
+<!-- 
+Source references:
+- https://nuxt.com/docs/getting-started/configuration
+- https://nuxt.com/docs/guide/going-further/runtime-config
+- https://nuxt.com/docs/api/nuxt-config
+-->