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/slidev/references/layout-draggable.md

@@ -0,0 +1,57 @@
+---
+name: draggable-elements
+description: Move, resize, and rotate elements by dragging during presentation
+---
+
+# Draggable Elements
+
+Move, resize, and rotate elements by dragging during presentation.
+
+## Directive Usage
+
+### With Frontmatter Position
+
+```md
+---
+dragPos:
+  square: Left,Top,Width,Height,Rotate
+---
+
+<img v-drag="'square'" src="https://sli.dev/logo.png">
+```
+
+### Inline Position
+
+```md
+<img v-drag="[Left,Top,Width,Height,Rotate]" src="https://sli.dev/logo.png">
+```
+
+## Component Usage
+
+```md
+---
+dragPos:
+  foo: Left,Top,Width,Height,Rotate
+---
+
+<v-drag pos="foo" text-3xl>
+  Draggable content
+</v-drag>
+```
+
+## Draggable Arrow
+
+```md
+<v-drag-arrow />
+```
+
+## Controls
+
+- Double-click: Start dragging
+- Arrow keys: Move element
+- Shift + drag: Preserve aspect ratio
+- Click outside: Stop dragging
+
+## Auto Height
+
+Set Height to `NaN` or `_` for auto height based on content.