chore: add docker deployment config

.dockerignore

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+.env.local
+.git
+.next
+.planning
+node_modules
+tsconfig.tsbuildinfo

Dockerfile

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+FROM node:22-bookworm-slim AS base
+
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+
+RUN corepack enable
+
+WORKDIR /app
+
+FROM base AS deps
+
+COPY package.json pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
+
+FROM base AS builder
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+RUN pnpm prisma generate && pnpm build
+
+FROM node:22-bookworm-slim AS runner
+
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+ENV NODE_ENV="production"
+ENV HOSTNAME="0.0.0.0"
+ENV PORT="3000"
+
+RUN corepack enable
+
+WORKDIR /app
+
+COPY --from=builder /app ./
+
+EXPOSE 3000
+
+CMD ["pnpm", "exec", "next", "start", "--hostname", "0.0.0.0", "--port", "3000"]