Add Dockerfiles, .dockerignore and brand logo

- apps/api/Dockerfile: multi-stage pnpm build, runtime node:22-alpine, port 3001
- apps/web/Dockerfile: multi-stage pnpm + Vite, runtime nginx:alpine with SPA config
- .dockerignore: excludes node_modules, dist, .env, .git, IDE folders, design docs
- Brand logo (naturcalabacera.webp) integrated as favicon, sidebar icon, header logo
- index.html title updated to 'Naturcalabacera · Reservas'

apps/web/Dockerfile

@@ -0,0 +1,52 @@
+# syntax=docker/dockerfile:1
+
+# ───── Stage 1: build ─────
+FROM node:22-alpine AS builder
+WORKDIR /repo
+RUN corepack enable
+
+COPY pnpm-workspace.yaml package.json pnpm-lock.yaml ./
+COPY packages/shared/package.json ./packages/shared/
+COPY apps/web/package.json ./apps/web/
+
+RUN pnpm install --frozen-lockfile
+
+COPY packages/shared ./packages/shared
+COPY apps/web ./apps/web
+
+# Variables públicas inyectadas en el bundle por Vite (build-time)
+ARG VITE_SUPABASE_URL
+ARG VITE_SUPABASE_ANON_KEY
+ARG VITE_SUPABASE_SCHEMA
+ARG VITE_API_URL
+ENV VITE_SUPABASE_URL=$VITE_SUPABASE_URL
+ENV VITE_SUPABASE_ANON_KEY=$VITE_SUPABASE_ANON_KEY
+ENV VITE_SUPABASE_SCHEMA=$VITE_SUPABASE_SCHEMA
+ENV VITE_API_URL=$VITE_API_URL
+
+RUN pnpm --filter @naturcalabacera/web build
+
+# ───── Stage 2: runtime (Nginx sirviendo SPA) ─────
+FROM nginx:alpine
+COPY --from=builder /repo/apps/web/dist /usr/share/nginx/html
+
+# Config SPA: cualquier ruta cae en index.html (React Router friendly)
+RUN printf 'server {\n\
+    listen 80;\n\
+    server_name _;\n\
+    root /usr/share/nginx/html;\n\
+    index index.html;\n\
+\n\
+    location / {\n\
+        try_files $uri $uri/ /index.html;\n\
+    }\n\
+\n\
+    # Cache largo para assets con hash\n\
+    location /assets/ {\n\
+        expires 1y;\n\
+        add_header Cache-Control "public, immutable";\n\
+    }\n\
+}\n' > /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]