remove separate ui service, serve ui with backend

Dockerfile

@@ -0,0 +1,42 @@
+FROM node:24-alpine AS node-builder
+WORKDIR /app
+COPY ui/package-lock.json .
+COPY ui/package.json .
+RUN npm install
+
+COPY ui .
+RUN npm run build
+
+FROM rust:1.87 AS base
+RUN cargo install --locked cargo-chef sccache
+ENV RUSTC_WRAPPER=sccache SCCACHE_DIR=/sccache
+
+FROM base AS planner
+WORKDIR /app
+COPY . .
+RUN cargo chef prepare --recipe-path recipe.json
+
+FROM base AS builder
+WORKDIR /app
+COPY --from=planner /app/recipe.json recipe.json
+RUN --mount=type=cache,target=/usr/local/cargo/registry \
+    --mount=type=cache,target=/usr/local/cargo/git \
+    --mount=type=cache,target=$SCCACHE_DIR,sharing=locked \
+    cargo chef cook --release --recipe-path recipe.json
+COPY . .
+RUN --mount=type=cache,target=/usr/local/cargo/registry \
+    --mount=type=cache,target=/usr/local/cargo/git \
+    --mount=type=cache,target=$SCCACHE_DIR,sharing=locked \
+    cargo build --release --bin nuchat --target-dir=/app/target
+
+FROM gcr.io/distroless/cc AS runtime
+
+WORKDIR /app
+
+ADD --chmod=a+x vendor/busybox_WGET /usr/bin/wget
+COPY --from=node-builder /app/dist dist
+COPY --from=builder /app/target/release/nuchat .
+
+# HEALTHCHECK --interval=5s --retries=1 --timeout=5s CMD ["wget", "-q", "--spider", "http://localhost:7000/healthcheck
+
+ENTRYPOINT [ "/app/nuchat", "--host", "0.0.0.0" ]