diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
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+# Base image
+FROM python:3.10-slim
+
+# Set working directory
+WORKDIR /app
+
+# Copy all files
+COPY . /app
+
+# Install dependencies (if any)
+RUN pip install --no-cache-dir -r requirements.txt || true
+RUN pip install pytest
+
+# Default command: open bash
+CMD ["/bin/bash"]
+