Fix Docker entrypoint issues and improve containerization approach

Refactors the Dockerfile to use an inline script and addresses file permission issues for a more robust container build.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 4b008663-bd72-492b-b0b6-fa252367e730
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/0715008c-7244-40f4-befc-26c014852236/4b008663-bd72-492b-b0b6-fa252367e730/jJHXzkQ

docker-compose.yml

@@ -40,7 +40,7 @@ services:
   regisflow:
     build: 
       context: .
-      dockerfile: Dockerfile
+      dockerfile: Dockerfile.alternative
       target: production
       args:
         - NODE_ENV=production