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

@@ -0,0 +1,48 @@
+# Dockerfile optimizado para Next.js production
+FROM node:18-alpine AS base
+
+# Instalar dependencias solo para producción
+FROM base AS deps
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+
+# Copiar archivos de dependencias
+COPY package.json package-lock.json ./
+RUN npm ci --only=production --ignore-scripts && npm cache clean --force
+
+# Build stage
+FROM base AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+# Variables de entorno para build
+ENV NEXT_TELEMETRY_DISABLED 1
+ENV NODE_ENV production
+
+# Build optimizado
+RUN npm run build
+
+# Production stage
+FROM base AS runner
+WORKDIR /app
+
+ENV NODE_ENV production
+ENV NEXT_TELEMETRY_DISABLED 1
+
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+# Copiar archivos necesarios
+COPY --from=builder /app/public ./public
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+
+USER nextjs
+
+EXPOSE 3000
+
+ENV PORT 3000
+ENV HOSTNAME "0.0.0.0"
+
+CMD ["node", "server.js"]