♻️(dev) refacto tilt stack

To be able to move the repository on the new organization and to
facilitate external developer integration we need to create a standalone
dev stack and use external secret.

docs/local_development_kube.md

@@ -92,7 +92,11 @@ make start-kind
 ### Deploy the application
 
 ```bash
-tilt up -f ./bin/Tiltfile
+# Pro Connect environment
+tilt up -f ./bin/Tiltfile 
+
+# Standalone environment with keycloak
+DEV_ENV=dev-keycloak tilt up -f ./bin/Tiltfile
 ```
 
 **or** run the equivalent using the makefile