Added Docker workflow

Dockerfile

@@ -0,0 +1,47 @@
+# ─── Stage 1: Install dependencies ───────────────────────────────────────────
+FROM oven/bun:1 AS deps
+WORKDIR /app
+
+COPY package.json bun.lock ./
+RUN bun install --frozen-lockfile
+
+# ─── Stage 2: Build Next.js ──────────────────────────────────────────────────
+FROM oven/bun:1 AS builder
+WORKDIR /app
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+RUN bun run build
+
+# ─── Stage 3: Production runner ──────────────────────────────────────────────
+FROM oven/bun:1-slim AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+
+# Copy runtime dependencies
+COPY --from=builder /app/node_modules ./node_modules
+
+# Copy Next.js build output
+COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
+
+# Copy server entry point and all runtime source files
+COPY --from=builder /app/server.ts ./server.ts
+COPY --from=builder /app/lib ./lib
+COPY --from=builder /app/drizzle ./drizzle
+COPY --from=builder /app/tsconfig.json ./tsconfig.json
+COPY --from=builder /app/next.config.ts ./next.config.ts
+
+# Pre-create data directory (SQLite db + uploads land here)
+RUN mkdir -p /app/data
+
+EXPOSE 3000
+
+# Volumes for persistent data
+# Mount your Minecraft server directory to /mc-server
+# Mount your backups directory to /backups
+VOLUME ["/app/data", "/mc-server", "/backups"]
+
+CMD ["bun", "--bun", "run", "server.ts"]