feat: add scraper service to all Docker environments

Add eamco_scraper container definitions for dev, local, prod, and
Unraid deployments on port 9519. Remove unused Authorize env_file
references from dev config. Include add_towns.sh helper script for
bootstrapping street reference data.

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

unraid-docker-compose.yml

@@ -69,3 +69,12 @@ services:
       - '9518:8000'
     env_file:
       - unraid-env
+
+  scraper_prod:
+    restart: on-failure
+    image: anekdotin/eamco-scraper_prod:latest
+    ports:
+      - '9519:8000'
+    env_file:
+      - unraid-env
+    command: 'uvicorn app.main:app --host 0.0.0.0 --port 8000 --workers 2'