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/build-pdf.md

@@ -0,0 +1,40 @@
+---
+name: pdf
+description: Include downloadable PDF in SPA build
+---
+
+# Generate PDF when Building
+
+Generate a downloadable PDF alongside your built slides.
+
+## Enable in Headmatter
+
+```md
+---
+download: true
+---
+```
+
+This generates a PDF and adds a download button to the built slides.
+
+## Custom PDF URL
+
+Skip generation and use an existing PDF:
+
+```md
+---
+download: 'https://example.com/my-talk.pdf'
+---
+```
+
+## CLI Option
+
+```bash
+slidev build --download
+```
+
+## Export Options
+
+Configure PDF export settings via:
+- CLI: `slidev build --download --with-clicks --timeout 60000`
+- Headmatter: Set `exportFilename`, `withClicks`, etc.