Prepare shop-ready deployment docs and fix transaction modal UI

docker-compose.yml

@@ -3,14 +3,16 @@ services:
     image: postgres:16-alpine
     container_name: crm_omt_db
     restart: unless-stopped
+    # bind to loopback only — DB is reachable from the API on this box, not from the LAN
     ports:
-      - "5432:5432"
+      - "127.0.0.1:5432:5432"
     environment:
-      POSTGRES_PASSWORD: postgres
-      POSTGRES_DB: crm_omt
-      ADMIN_EMAIL: ${ADMIN_EMAIL:-admin@local.test}
-      ADMIN_PASSWORD: ${ADMIN_PASSWORD:-ChangeMe123!}
-      ADMIN_NAME: ${ADMIN_NAME:-Local Admin}
+      # all of these MUST come from the .env file at repo root — no defaults
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?POSTGRES_PASSWORD is required}
+      POSTGRES_DB: ${POSTGRES_DB:-crm_omt}
+      ADMIN_EMAIL: ${ADMIN_EMAIL:?ADMIN_EMAIL is required}
+      ADMIN_PASSWORD: ${ADMIN_PASSWORD:?ADMIN_PASSWORD is required}
+      ADMIN_NAME: ${ADMIN_NAME:-Owner}
     volumes:
       - dbdata:/var/lib/postgresql/data
       - ./supabase/migrations:/sql/migrations:ro
@@ -23,3 +25,4 @@ services:
 
 volumes:
   dbdata:
+