Refactor Gitea and SSH configurations, update backup scripts, and enhance Nginx settings

- Updated SSH configuration for Gitea to disable banner and TTY, and modified the AuthorizedKeysCommand.
- Simplified gitea-shell script to directly call the k8s_gitea_shell command with required parameters.
- Removed unused gitea-auth script from playbook_gitea.yml.
- Updated systools_version in playbook_systools.yml to 0.4.5.
- Enhanced ssh_locker_helper to copy redirect URL to clipboard based on OS.
- Added a new script test_imaps for IMAP testing.
- Updated Terraform configurations for various applications, including:
  - Added a backup script for MariaDB with retention policy.
  - Changed Gitea version to 1.24-rootless and adjusted SSH settings.
  - Updated Nginx configurations to log errors and access to stderr/stdout.
  - Refactored services to use ClusterIP type and adjusted security contexts for deployments.
  - Added temporary storage for applications using empty_dir.
  - Enhanced backup.sh scripts for better error handling and logging.

terraform/modules/apps/nginx-reverse-proxy/resources/nginx/nginx.conf

@@ -1,6 +1,6 @@
 worker_processes  auto;
 
-error_log  /var/log/nginx/error.log notice;
+error_log  /dev/stderr warn;
 pid        /tmp/nginx.pid;
 
 events {
@@ -25,7 +25,7 @@ http {
                       '$status $body_bytes_sent "$http_referer" '
                       '"$http_user_agent" "$http_x_forwarded_for"';
 
-    access_log  /var/log/nginx/access.log  main;
+    access_log  /dev/stdout  main;
 
     sendfile        on;
 
@@ -43,5 +43,6 @@ http {
     include /etc/nginx/conf.d/*.conf;
 }
 
-include /etc/nginx/streams.d/*.conf;
-
+stream {
+    include /etc/nginx/streams.d/*.conf;
+}