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>

docker-compose.yml

@@ -0,0 +1,16 @@
+version: "3.9"
+services:
+  dashboard:
+    build: .
+    ports:
+      - "6677:6677"
+    volumes:
+      - ./data:/data
+    environment:
+      - DATA_DIR=/data
+      - PARQUET_URL=https://github.com/digitalcortex/72m-domains-dataset/raw/refs/heads/master/domains.parquet
+      - CONCURRENCY_LIMIT=50
+      - SCORE_THRESHOLD=60
+      - TARGET_TLDS=es,com,net
+      - TARGET_COUNTRIES=ES,GB,DE,FR,RO,PT,AD,IT
+    restart: unless-stopped