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>

add_towns.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+towns=("Sutton" "Oxford" "North Oxford" "Webster" "Grafton" "Dudley" "Charlton" "Cherry Valley" "Rochdale" "Paxton" "Spencer" "Worcester")
+base_url="http://localhost:9618/streets"
+state="MA"
+
+for town in "${towns[@]}"; do
+    encoded_town="${town// /%20}"
+    echo "Adding $town..."
+    curl -s -X POST "$base_url/$encoded_town/$state"
+    echo ""
+done