deploy(docker): optimize size

Dockerfile

@@ -1,17 +1,13 @@
-FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim
-
+FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim AS builder
 WORKDIR /app
 
-RUN apt-get update && apt-get install -y \
-    gcc \
-    pkg-config \
-    default-libmysqlclient-dev \
-    curl \
-    netcat-openbsd \
-    && rm -rf /var/lib/apt/lists/*
+RUN apt-get update \
+ && apt-get install -y gcc pkg-config default-libmysqlclient-dev \
+ && rm -rf /var/lib/apt/lists/* \
+ && curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
 
-RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
-ENV PATH="/root/.cargo/bin:${PATH}"
+ENV PATH="/root/.cargo/bin:${PATH}" \
+    PYTHONUNBUFFERED=1 PYTHONDONTWRITEBYTECODE=1 UV_PROJECT_ENVIRONMENT=/app/.venv
 
 ENV PYTHONUNBUFFERED=1
 ENV PYTHONDONTWRITEBYTECODE=1
@@ -21,11 +17,25 @@ COPY pyproject.toml uv.lock ./
 COPY packages/ ./packages/
 
 RUN uv sync --frozen --no-dev
-
 RUN uv pip install rosu-pp-py
 
 COPY . .
 
+# ---
+
+FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim
+WORKDIR /app
+
+RUN apt-get update \
+ && apt-get install -y curl netcat-openbsd \
+ && rm -rf /var/lib/apt/lists/*
+
+ENV PATH="/app/.venv/bin:${PATH}" \
+    PYTHONUNBUFFERED=1 PYTHONDONTWRITEBYTECODE=1
+
+COPY --from=builder /app/.venv /app/.venv
+COPY --from=builder /app /app
+
 COPY docker-entrypoint.sh /app/docker-entrypoint.sh
 RUN chmod +x /app/docker-entrypoint.sh