Add Dockerfile and devcontainer

Dockerfile

@@ -0,0 +1,26 @@
+FROM python:3.11-slim
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    tor onionshare-cli \
+    jq qrencode imagemagick poppler-utils \
+    nodejs npm \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install npm tools for HTML/JS processing
+RUN npm install -g javascript-obfuscator html-minifier-terser
+
+# Copy VoxVera source
+COPY . /opt/voxvera
+ENV PYTHONPATH=/opt/voxvera
+
+# Make voxvera command available
+RUN echo '#!/bin/sh\nexec python3 -m voxvera.cli "$@"' > /usr/local/bin/voxvera \
+    && chmod +x /usr/local/bin/voxvera
+
+# Prepare flyers volume
+RUN mkdir /flyers && ln -s /flyers /opt/voxvera/host
+VOLUME /flyers
+WORKDIR /opt/voxvera
+
+CMD ["voxvera", "quickstart"]