feat: initial Dockerized domain intelligence dashboard

- FastAPI backend with DuckDB pushdown queries on 72M parquet
- Async enrichment worker: HTTP, SSL, DNS MX, CMS fingerprint, ip-api.com
- Resumable parquet download with HTTP Range support
- Lead scoring engine (max 100 pts, target countries ES,GB,DE,FR,RO,PT,AD,IT)
- Single-file Alpine.js + Chart.js dashboard on port 6677
- SQLite enrichment DB with job queue and scores tables
- Dockerized with persistent /data volume

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,16 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y \
+    curl gcc libssl-dev && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app/ ./app/
+
+EXPOSE 6677
+
+CMD ["python", "app/main.py"]