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/useIntervalFn.md

@@ -0,0 +1,50 @@
+---
+category: Animation
+---
+
+# useIntervalFn
+
+Wrapper for `setInterval` with controls
+
+## Usage
+
+```ts
+import { useIntervalFn } from '@vueuse/core'
+
+const { pause, resume, isActive } = useIntervalFn(() => {
+  /* your function */
+}, 1000)
+```
+
+## Type Declarations
+
+```ts
+export interface UseIntervalFnOptions {
+  /**
+   * Start the timer immediately
+   *
+   * @default true
+   */
+  immediate?: boolean
+  /**
+   * Execute the callback immediately after calling `resume`
+   *
+   * @default false
+   */
+  immediateCallback?: boolean
+}
+export type UseIntervalFnReturn = Pausable
+/**
+ * Wrapper for `setInterval` with controls
+ *
+ * @see https://vueuse.org/useIntervalFn
+ * @param cb
+ * @param interval
+ * @param options
+ */
+export declare function useIntervalFn(
+  cb: Fn,
+  interval?: MaybeRefOrGetter<number>,
+  options?: UseIntervalFnOptions,
+): UseIntervalFnReturn
+```