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/useSubscription.md

@@ -0,0 +1,33 @@
+---
+category: '@RxJS'
+---
+
+# useSubscription
+
+Use an RxJS [`Subscription`](https://rxjs.dev/guide/subscription) without worrying about unsubscribing from it or creating memory leaks.
+
+## Usage
+
+<!-- TODO: import rxjs error if enable twoslash -->
+
+```ts no-twoslash
+import { useSubscription } from '@vueuse/rxjs'
+import { interval } from 'rxjs'
+
+const count = ref(0)
+
+// useSubscription call unsubscribe method before unmount the component
+useSubscription(
+  interval(1000)
+    .subscribe(() => {
+      count.value++
+      console.log(count)
+    }),
+)
+```
+
+## Type Declarations
+
+```ts
+export declare function useSubscription(subscription: Unsubscribable): void
+```