feat: add minimal bun-compiled docker image

Dockerfile

@@ -0,0 +1,31 @@
+FROM oven/bun:1.3.13 AS builder
+WORKDIR /app
+
+ENV DATABASE_URL=file:./dev.db
+
+COPY package.json bun.lock ./
+COPY apps/api/package.json apps/api/package.json
+COPY apps/api/prisma apps/api/prisma
+COPY apps/web/package.json apps/web/package.json
+COPY packages/shared-types/package.json packages/shared-types/package.json
+
+RUN bun install --frozen-lockfile
+
+COPY . .
+
+RUN bun run --filter @codexdash/web build
+RUN bun run --filter @codexdash/api bundle
+
+FROM gcr.io/distroless/cc-debian12:nonroot
+WORKDIR /app
+
+ENV PORT=3001 \
+    WEB_DIST_DIR=/app/web \
+    CODEX_OAUTH_CALLBACK_BIND_HOST=0.0.0.0
+
+COPY --from=builder /app/apps/api/dist/codexdash /app/codexdash
+COPY --from=builder /app/apps/web/dist /app/web
+
+EXPOSE 3001 1455
+
+ENTRYPOINT ["/app/codexdash"]