add Dockerfile and docker-compose.yml

Dockerfile

@@ -0,0 +1,5 @@
+FROM node:20-slim
+
+COPY . /app
+WORKDIR /app
+RUN npm ci

docker-compose.yml

@@ -0,0 +1,16 @@
+services:
+  base: &base
+    build:
+      context: .
+      dockerfile: Dockerfile
+    volumes:
+      - .:/app
+    working_dir: /app
+  http_server:
+    <<: *base
+    ports:
+      - 127.0.0.1:5173:5173
+    command: npm run dev
+  style_watcher:
+    <<: *base
+    command: npm run watch-style

package.json

@@ -4,7 +4,7 @@
   "version": "0.0.0",
   "type": "module",
   "scripts": {
-    "dev": "vite",
+    "dev": "vite --host",
     "build": "tsc && vite build",
     "build-style": "npx charites build styles/charites-ai/style.yml public/style.json",
     "watch-style": "npx charites build -w styles/charites-ai/style.yml public/style.json",