Add dockerfile and workflow

.dockerignore

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+node_modules
+dist
+.git
+.gitignore
+*.log
+.DS_Store
+.vscode
+.idea
+.claude
+Dockerfile
+.dockerignore
+README.md

.gitea/workflows/docker-publish.yml

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+name: Docker
+
+on:
+  push:
+    branches: [master]
+
+env:
+  REGISTRY: gitea.coracle.social
+  IMAGE: coracle/nq
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: hodlbod
+          password: ${{ secrets.PACKAGE_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE }}
+          tags: |
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/master' }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          driver: docker-container
+
+      - name: Build and push Docker image
+        id: push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64 #,linux/arm64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE }}:buildcache
+          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE }}:buildcache,mode=max,image-manifest=true,oci-mediatypes=true

Dockerfile

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+# syntax=docker/dockerfile:1
+
+# ---- Build stage: compile the Vite/SolidJS app to static files ----
+FROM node:24-alpine AS build
+WORKDIR /app
+
+# pnpm ships with Node via corepack; pin to the version that produced pnpm-lock.yaml.
+RUN corepack enable && corepack prepare pnpm@10.33.0 --activate
+
+# Install deps first so this layer is cached unless the manifest/lockfile change.
+COPY package.json pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
+
+# Build (`tsc && vite build` → /app/dist). devDependencies are needed here.
+COPY . .
+RUN pnpm build
+
+# ---- Serve stage: static files via `serve` ----
+FROM node:24-alpine AS serve
+WORKDIR /app
+
+# `serve` (what `npx serve` runs) — installed at build time so the image is self-contained.
+RUN npm install -g serve@14
+
+COPY --from=build /app/dist ./dist
+
+EXPOSE 3000
+CMD ["serve", "-s", "dist", "-l", "3000"]