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/vercel-react-native-skills/rules/monorepo-single-dependency-versions.md

@@ -0,0 +1,63 @@
+---
+title: Use Single Dependency Versions Across Monorepo
+impact: MEDIUM
+impactDescription: avoids duplicate bundles, version conflicts
+tags: monorepo, dependencies, installation
+---
+
+## Use Single Dependency Versions Across Monorepo
+
+Use a single version of each dependency across all packages in your monorepo.
+Prefer exact versions over ranges. Multiple versions cause duplicate code in
+bundles, runtime conflicts, and inconsistent behavior across packages.
+
+Use a tool like syncpack to enforce this. As a last resort, use yarn resolutions
+or npm overrides.
+
+**Incorrect (version ranges, multiple versions):**
+
+```json
+// packages/app/package.json
+{
+  "dependencies": {
+    "react-native-reanimated": "^3.0.0"
+  }
+}
+
+// packages/ui/package.json
+{
+  "dependencies": {
+    "react-native-reanimated": "^3.5.0"
+  }
+}
+```
+
+**Correct (exact versions, single source of truth):**
+
+```json
+// package.json (root)
+{
+  "pnpm": {
+    "overrides": {
+      "react-native-reanimated": "3.16.1"
+    }
+  }
+}
+
+// packages/app/package.json
+{
+  "dependencies": {
+    "react-native-reanimated": "3.16.1"
+  }
+}
+
+// packages/ui/package.json
+{
+  "dependencies": {
+    "react-native-reanimated": "3.16.1"
+  }
+}
+```
+
+Use your package manager's override/resolution feature to enforce versions at
+the root. When adding dependencies, specify exact versions without `^` or `~`.