Replace front proxy with new SvelteKit frontend app

- Remove the old Hono/Bun proxy server
- Add the new `apps/frontend` SvelteKit scaffold and telemetry hook

dockerfiles/frontend.Dockerfile

@@ -0,0 +1,27 @@
+FROM node:25.6.1 AS production
+
+RUN npm i -g pnpm
+
+WORKDIR /app
+
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml turbo.json ./
+
+COPY apps/frontend/package.json ./apps/frontend/package.json
+
+COPY packages ./packages
+
+RUN pnpm install
+
+COPY apps/frontend ./apps/frontend
+
+RUN pnpm install
+
+RUN pnpm run build
+
+COPY scripts/prod.start.sh ./scripts/prod.start.sh
+
+EXPOSE 3000
+
+RUN chmod +x scripts/prod.start.sh
+
+CMD ["/bin/sh", "scripts/prod.start.sh", "apps/frontend"]