Update the loading files of the backend

Author: XY56L7

backend/.dockerignore

@@ -0,0 +1,9 @@
+target/
+.git/
+.gitignore
+*.md
+BUILD_TROUBLESHOOTING.md
+DEPLOYMENT.md
+.env
+.env.local
+

backend/.gitignore

@@ -0,0 +1,16 @@
+# Rust
+/target/
+**/*.rs.bk
+Cargo.lock
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+

backend/Cargo.toml

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+[package]
+name = "rust-backend"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+axum = "0.7"
+tower = "0.4"
+tower-http = { version = "0.5", features = ["cors"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+tokio = { version = "1.35", features = ["full"] }
+anyhow = "1.0"
+thiserror = "1.0"

backend/Dockerfile

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+# Multi-stage build for Rust backend
+
+# Build stage
+FROM rust:1.75 as builder
+WORKDIR /app
+
+# Copy dependency files first (for better caching)
+COPY backend/Cargo.toml backend/Cargo.lock ./
+RUN mkdir src && echo "fn main() {}" > src/main.rs
+RUN cargo build --release
+RUN rm src/main.rs
+
+# Copy source code
+COPY backend/src ./src
+COPY backend/data ./data
+
+# Build the actual application
+RUN touch src/main.rs && cargo build --release
+
+# Runtime stage
+FROM debian:bookworm-slim
+
+# Install CA certificates for HTTPS
+RUN apt-get update && apt-get install -y \
+    ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Copy the binary from builder
+COPY --from=builder /app/target/release/rust-backend /app/rust-backend
+
+# Copy data directory
+COPY --from=builder /app/data ./data
+
+# Set environment variables
+ENV PORT=8080
+EXPOSE 8080
+
+# Run the application
+CMD ["./rust-backend"]
+