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>

requirements.txt

@@ -0,0 +1,8 @@
+fastapi
+uvicorn[standard]
+duckdb
+httpx
+dnspython
+beautifulsoup4
+aiosqlite
+python-dotenv