Add Dockerfile to embed backup file for Portainer compatibility

Dockerfile

@@ -0,0 +1,7 @@
+FROM postgres:16-alpine
+
+# Copy backup file into the image
+COPY backup_global_20260130_184353.sql /tmp/restore.sql
+
+# Set correct permissions
+RUN chmod 644 /tmp/restore.sql

docker-compose.yml

@@ -2,7 +2,9 @@ version: '3.8'
 
 services:
   postgres-local:
-    image: postgres:16-alpine
+    build:
+      context: .
+      dockerfile: Dockerfile
     container_name: pralog-local-db
     environment:
       POSTGRES_USER: itguys
@@ -11,7 +13,6 @@ services:
     ports:
       - "15432:5432"
     volumes:
-      - ./backup_global_20260130_184353.sql:/tmp/restore.sql:ro
       - postgres_data:/var/lib/postgresql/data
     networks:
       - pralog-net