Added Docker Support

apps/sync-server/Dockerfile

@@ -0,0 +1,35 @@
+FROM node:22-alpine AS build
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+COPY tsconfig.json tsconfig.base.json ./
+COPY apps ./apps
+COPY packages ./packages
+
+RUN npm ci
+RUN npm run build --workspace @obsidian-sync/sync-server
+RUN npm prune --omit=dev
+
+FROM node:22-alpine AS runtime
+
+WORKDIR /app
+
+ENV NODE_ENV=production
+ENV PORT=8787
+ENV SYNC_DATA_DIR=/app/data
+
+COPY --from=build /app/package.json ./package.json
+COPY --from=build /app/package-lock.json ./package-lock.json
+COPY --from=build /app/node_modules ./node_modules
+COPY --from=build /app/apps/sync-server/package.json ./apps/sync-server/package.json
+COPY --from=build /app/apps/sync-server/dist ./apps/sync-server/dist
+COPY --from=build /app/packages/sync-protocol/package.json ./packages/sync-protocol/package.json
+COPY --from=build /app/packages/sync-protocol/dist ./packages/sync-protocol/dist
+
+EXPOSE 8787
+VOLUME ["/app/data"]
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 CMD node -e "fetch('http://127.0.0.1:8787/health').then((response)=>{if(!response.ok) process.exit(1);}).catch(()=>process.exit(1));"
+
+CMD ["node", "apps/sync-server/dist/index.js"]