feat: Add Formbricks integration, update forms with webhooks, enhance navigation

- Integrate @formbricks/js for future surveys (FormbricksProvider)
- Add WebhookForm component for unified form submission (contact/franchise/membership)
- Update contact form with reason dropdown field
- Update franchise form with new fields: estado, ciudad, socios checkbox
- Update franchise benefits: manuals, training platform, RH system, investment $100k
- Add Contacto link to desktop/mobile nav and footer
- Update membership form to use WebhookForm with membership_id select
- Update hero buttons to use #3E352E color consistently
- Refactor contact/franchise pages to use new hero layout and components
- Add webhook utility (lib/webhook.ts) for parallel submission to test+prod
- Add email receipt hooks to booking endpoints
- Update globals.css with new color variables and navigation styles
- Docker configuration for deployment

Dockerfile.dev

@@ -0,0 +1,19 @@
+# Dockerfile para desarrollo
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Copiar archivos de dependencias primero para caching
+COPY package.json package-lock.json ./
+
+# Instalar dependencias incluyendo dev
+RUN npm ci
+
+# Copiar código fuente
+COPY . .
+
+# Exponer puerto
+EXPOSE 3000
+
+# Comando por defecto
+CMD ["npm", "run", "dev"]