chore: initial hub repo structure

infra/docker/scraper.Dockerfile

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+# Use cargo-chef for dependency caching
+FROM lukemathwalker/cargo-chef:latest-rust-1.89.0 AS chef
+WORKDIR /app
+
+# Install Node.js if needed for build scripts
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    nodejs \
+    && rm -rf /var/lib/apt/lists/*
+
+FROM chef AS planner
+COPY apps/scraper .
+RUN cargo chef prepare --recipe-path recipe.json
+
+FROM chef AS builder
+COPY --from=planner /app/recipe.json recipe.json
+# Utilize buildkit cache mounts for cargo
+RUN --mount=type=cache,target=/usr/local/cargo/registry \
+    --mount=type=cache,target=/app/target \
+    cargo chef cook --release --recipe-path recipe.json
+
+# Build application
+COPY apps/scraper .
+RUN --mount=type=cache,target=/usr/local/cargo/registry \
+    --mount=type=cache,target=/app/target \
+    cargo build --release && \
+    cp target/release/scraper /app/scraper
+
+# Final runtime image
+FROM debian:bookworm-slim AS runtime
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    libssl3 \
+    chromium \
+    fonts-liberation \
+    fonts-noto-color-emoji \
+    && rm -rf /var/lib/apt/lists/*
+
+# Add non-root user
+RUN groupadd -g 1001 appgroup && \
+    useradd -u 1001 -g appgroup -s /bin/sh appuser
+
+WORKDIR /app
+COPY --from=builder /app/scraper /app/scraper
+
+# Run as non-root
+USER appuser
+
+EXPOSE 4091
+CMD ["./scraper"]