rust fmt and some cleaning

Dockerfile

@@ -1,23 +0,0 @@
-FROM rust:latest AS builder
-WORKDIR /app
-COPY . .
-RUN cargo build --release
-
-FROM debian:bookworm-slim
-
-# Create the app user with UID 1001
-RUN useradd -u 1001 -m appuser
-
-# Create working directory (only needed if your app expects /app)
-WORKDIR /app
-
-# Copy binary from builder
-COPY --from=builder /app/target/release/hotel-api-rs /usr/local/bin/hotel-api-rs
-
-# Switch to non-root user
-USER 1001
-
-# Expose API port
-EXPOSE 8080
-
-CMD ["/usr/local/bin/hotel-api-rs"]