fix: devcontainer (#32260)

libs/langchain/dev.Dockerfile

@@ -0,0 +1,41 @@
+FROM python:3.11-slim-bookworm
+
+# Set environment variables for Python and uv
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    UV_CACHE_DIR=/tmp/uv-cache
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    curl \
+    git \
+    vim \
+    less \
+    ca-certificates \
+    && rm -rf /var/lib/apt/lists/* \
+    && apt-get clean
+
+RUN pip install --no-cache-dir uv
+
+WORKDIR /workspaces/langchain
+
+COPY . .
+
+# Create uv cache directory and set permissions
+RUN mkdir -p $UV_CACHE_DIR && chmod 755 $UV_CACHE_DIR
+
+# Install dependencies using uv (let uv handle the venv creation)
+RUN uv sync --dev
+
+# Create a non-root user and set up proper permissions
+RUN useradd -m -s /bin/bash -u 1000 vscode && \
+    chown -R vscode:vscode /workspaces $UV_CACHE_DIR
+
+USER vscode
+
+# Set shell for interactive use
+SHELL ["/bin/bash", "-c"]
+CMD ["/bin/bash"]