Fix mypy type errors in reporting module

Dockerfile

@@ -0,0 +1,39 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install system dependencies for WeasyPrint (PDF generation)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libpango-1.0-0 \
+    libpangocairo-1.0-0 \
+    libgdk-pixbuf2.0-0 \
+    libffi-dev \
+    shared-mime-info \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy project files
+COPY pyproject.toml .
+COPY src/ src/
+COPY config/ config/
+
+# Install package with reports dependencies (for PDF export)
+RUN pip install --no-cache-dir -e ".[reports]"
+
+# Create data directory for SQLite and measurements
+RUN mkdir -p /app/data/measurements /app/data/reports
+
+# Streamlit configuration
+RUN mkdir -p ~/.streamlit
+RUN echo '[server]\n\
+headless = true\n\
+address = "0.0.0.0"\n\
+port = 8080\n\
+enableXsrfProtection = false\n\
+enableCORS = false\n\
+\n\
+[browser]\n\
+gatherUsageStats = false\n' > ~/.streamlit/config.toml
+
+EXPOSE 8080
+
+CMD ["streamlit", "run", "src/py_dvt_ate/app/dashboard/app.py"]