rewrite bot in TypeScript and add locale switching

Dockerfile.bun

@@ -0,0 +1,19 @@
+FROM oven/bun:1.3.14 AS build
+
+WORKDIR /app
+COPY package.json bun.lock ./
+RUN bun install --frozen-lockfile
+COPY tsconfig.json biome.json ./
+COPY src ./src
+RUN bun run build
+
+FROM oven/bun:1.3.14
+WORKDIR /app
+COPY package.json bun.lock ./
+RUN bun install --frozen-lockfile --production
+COPY --from=build /app/dist ./dist
+RUN mkdir -p /app/data && chown -R bun:bun /app
+USER bun
+ENV NODE_ENV=production BOT_MODE=polling BIND_HOST=0.0.0.0 PORT=8080
+EXPOSE 8080
+CMD ["bun", "dist/src/index.js"]