fix(docker): simplify Dockerfile

Dockerfile

@@ -1,32 +1,25 @@
-FROM debian:bookworm-slim
+FROM python:3.10-slim as base
 
-RUN apt-get update && apt-get install -y \
-    curl \
+WORKDIR /app
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     libssl-dev \
     zlib1g-dev \
     libbz2-dev \
     libreadline-dev \
     libsqlite3-dev \
-    wget \
-    git \
-    libncurses5-dev \
     libffi-dev \
     liblzma-dev \
-    && rm -rf /var/lib/apt/lists/*
-
-# Install pyenv
-RUN curl https://pyenv.run | bash
-ENV PYENV_ROOT="/root/.pyenv"
-ENV PATH="$PYENV_ROOT/bin:$PATH"
-RUN pyenv install 3.10.12 && pyenv global 3.10.12
-RUN python --version
-
-WORKDIR /app
-COPY . /app
+    curl \
+    git \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
 
+COPY app/requirements.txt /app/
 RUN pip install --no-cache-dir -r requirements.txt
+COPY app/ /app/
 
 EXPOSE 8000
-
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]