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/useTimestamp.md

@@ -0,0 +1,85 @@
+---
+category: Animation
+---
+
+# useTimestamp
+
+Reactive current timestamp
+
+## Usage
+
+```ts
+import { useTimestamp } from '@vueuse/core'
+
+const timestamp = useTimestamp({ offset: 0 })
+```
+
+```ts
+import { useTimestamp } from '@vueuse/core'
+// ---cut---
+const { timestamp, pause, resume } = useTimestamp({ controls: true })
+```
+
+## Component Usage
+
+```vue
+<template>
+  <UseTimestamp v-slot="{ timestamp, pause, resume }">
+    Current Time: {{ timestamp }}
+    <button @click="pause()">
+      Pause
+    </button>
+    <button @click="resume()">
+      Resume
+    </button>
+  </UseTimestamp>
+</template>
+```
+
+## Type Declarations
+
+```ts
+export interface UseTimestampOptions<Controls extends boolean> {
+  /**
+   * Expose more controls
+   *
+   * @default false
+   */
+  controls?: Controls
+  /**
+   * Offset value adding to the value
+   *
+   * @default 0
+   */
+  offset?: number
+  /**
+   * Update the timestamp immediately
+   *
+   * @default true
+   */
+  immediate?: boolean
+  /**
+   * Update interval, or use requestAnimationFrame
+   *
+   * @default requestAnimationFrame
+   */
+  interval?: "requestAnimationFrame" | number
+  /**
+   * Callback on each update
+   */
+  callback?: (timestamp: number) => void
+}
+/**
+ * Reactive current timestamp.
+ *
+ * @see https://vueuse.org/useTimestamp
+ * @param options
+ */
+export declare function useTimestamp(
+  options?: UseTimestampOptions<false>,
+): ShallowRef<number>
+export declare function useTimestamp(options: UseTimestampOptions<true>): {
+  timestamp: ShallowRef<number>
+} & Pausable
+export type UseTimestampReturn = ReturnType<typeof useTimestamp>
+```