feat: LTI support and Moodle plugin

lti/apps.py

@@ -0,0 +1,16 @@
+from django.apps import AppConfig
+
+from .keys import ensure_keys_exist
+
+
+class LtiConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'lti'
+    verbose_name = 'LTI 1.3 Integration'
+
+    def ready(self):
+        """Initialize LTI app - ensure keys exist"""
+        try:
+            ensure_keys_exist()
+        except Exception:
+            pass