fix: move all hardcoded secrets to .env files and create examples

server/docker-compose.yml

@@ -7,7 +7,7 @@ services:
     networks:
       - lora-gateway_mqtt
       - database
-    env_file: consumer.env
+    env_file: env_files/consumer.env
 
   api:
     build: ./backend
@@ -19,7 +19,7 @@ services:
     networks:
       - public
       - database
-    env_file: api.env
+    env_file: env_files/api.env
 
   webui:
     build: ./frontend
@@ -40,10 +40,8 @@ services:
       - db:/var/lib/postgresql
     networks:
       - database
-    environment:
-      - POSTGRES_USER=simugaz
-      - POSTGRES_PASSWORD=simugaz
-      - POSTGRES_DB=simugaz
+    env_file: env_files/db.env
+      
   
   pgadmin:
     image: dpage/pgadmin4:latest
@@ -55,9 +53,7 @@ services:
       - database
     volumes:
       - ./servers.json:/pgadmin4/servers.json
-    environment:
-      PGADMIN_DEFAULT_EMAIL: admin@example.com
-      PGADMIN_DEFAULT_PASSWORD: changeme
+    env_file: env_files/pgadmin.env
     
 volumes:
   db:

server/env_files/db.env.example

@@ -0,0 +1,3 @@
+POSTGRES_USER=simugaz
+POSTGRES_PASSWORD=simugaz
+POSTGRES_DB=simugaz

server/env_files/pgadmin.env.example

@@ -0,0 +1,2 @@
+PGADMIN_DEFAULT_EMAIL=admin@example.com
+PGADMIN_DEFAULT_PASSWORD=changeme