feat: write .env from GitHub secret during deployment

Add DEV_ENV_FILE secret to write the .env file to the server
automatically on each deploy. Also remove obsolete docker-compose
version field.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: hendisantika

.github/workflows/deploy-dev.yml

@@ -56,6 +56,10 @@ jobs:
         run: |
           ssh deployer@103.31.204.189 'mkdir -p ~/jvmid-bot/data'
 
+      - name: Write .env file to server
+        run: |
+          ssh deployer@103.31.204.189 "echo '${{ secrets.DEV_ENV_FILE }}' > ~/jvmid-bot/.env"
+
       - name: Copy docker-compose.prod.yml to server
         run: |
           scp docker-compose.prod.yml deployer@103.31.204.189:~/jvmid-bot/docker-compose.prod.yml

docker-compose.prod.yml

@@ -1,5 +1,3 @@
-version: '3.8'
-
 services:
   bot:
     image: hendisantika/jvmid-bot:latest