initial commit: slides + practica_resueltos + README

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

slides/pages/introduction/10.md

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+layout: default
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+# LangChain.js: Entornos de Ejecución
+
+<div class="grid grid-cols-2 gap-6 mt-6">
+
+<div>
+
+## 🖥️ Runtimes Soportados
+
+<v-clicks>
+
+- **Node.js** (20.x, 22.x, 24.x)
+  - ESM y CommonJS
+
+- **Deno** - Runtime seguro
+
+- **Bun** - Runtime ultra-rápido
+
+- **Navegadores** - Client-side
+
+</v-clicks>
+
+</div>
+
+<div>
+
+## ☁️ Edge & Serverless
+
+<v-clicks>
+
+- **Cloudflare Workers**
+
+- **Vercel Edge Functions**
+
+- **Next.js** (Server, Edge, Browser)
+
+- **Supabase Edge Functions**
+
+</v-clicks>
+
+<v-click>
+
+### 💪 Ventaja Clave
+
+**Una sola codebase** para frontend, backend, edge y serverless
+
+</v-click>
+
+</div>
+
+</div>