Add complete GIS ETL project skeleton for SRTM data processing

- Python modules for geo boundary processing and SRTM downloads
- Docker containerization with GDAL support
- Development environment with devcontainer
- Orchestration scripts for local and containerized execution
- Support for KMZ/GeoJSON boundary files and NASA SRTM data

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,24 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y \
+    curl \
+    wget \
+    gdal-bin \
+    libgdal-dev \
+    python3-gdal \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY src/ ./src/
+COPY scripts/ ./scripts/
+COPY config/ ./config/
+
+RUN chmod +x scripts/*.sh
+
+ENV PYTHONPATH=/app/src
+
+CMD ["python", "src/main.py"]