Add VERSION to settings from environment variable

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: alexeygrigorev

course_management/settings.py

@@ -39,6 +39,8 @@
 IS_LOCAL = os.getenv("IS_LOCAL", "0") == "1"
 print(f"IS_LOCAL={IS_LOCAL}")
 
+VERSION = os.getenv("VERSION", "N/A")
+
 CSRF_TRUSTED_ORIGINS = []
 
 for host in ALLOWED_HOSTS: