feat: add JWT_SECRET to deployment and create .env file for environment variables

ansible/deploy.yml

@@ -24,6 +24,12 @@
         src: "{{ artifact_path }}/docker-compose.arm64.yml"
         dest: "{{ deploy_dir }}/docker-compose.yml"
 
+    - name: Create .env file
+      ansible.builtin.copy:
+        content: "JWT_SECRET={{ jwt_secret }}\n"
+        dest: "{{ deploy_dir }}/.env"
+        mode: "0600"
+
     - name: Load Docker image
       ansible.builtin.command: docker load -i {{ deploy_dir }}/brainwave-arm64.tar.gz
       register: docker_load_result