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/usePerformanceObserver.md

@@ -0,0 +1,48 @@
+---
+category: Browser
+---
+
+# usePerformanceObserver
+
+Observe performance metrics.
+
+## Usage
+
+```ts
+import { usePerformanceObserver } from '@vueuse/core'
+
+const entrys = ref<PerformanceEntry[]>([])
+usePerformanceObserver({
+  entryTypes: ['paint'],
+}, (list) => {
+  entrys.value = list.getEntries()
+})
+```
+
+## Type Declarations
+
+```ts
+export type UsePerformanceObserverOptions = PerformanceObserverInit &
+  ConfigurableWindow & {
+    /**
+     * Start the observer immediate.
+     *
+     * @default true
+     */
+    immediate?: boolean
+  }
+/**
+ * Observe performance metrics.
+ *
+ * @see https://vueuse.org/usePerformanceObserver
+ * @param options
+ */
+export declare function usePerformanceObserver(
+  options: UsePerformanceObserverOptions,
+  callback: PerformanceObserverCallback,
+): {
+  isSupported: ComputedRef<boolean>
+  start: () => void
+  stop: () => void
+}
+```