feat: [ACADEMIC-16209] Unit summary settings

[https://jira.2u.com/browse/ACADEMIC-16209](https://jira.2u.com/browse/ACADEMIC-16209)

1. Add unit xpert unit summaries settings behind flag `summaryhook_summaries_configuration` added [here](https://github.com/edx/ai-aside/pull/45/files)
2. Only show the checkbox when the value is a `boolean` otherwise the feature is considerer `disabled` by the flag.
3. Update block handler to update this value via `api` exposed [here](edx/ai-aside#43)
4. Create `AiAsideSummary` configuration class to provide access to the `ai_aside.api` endpoints.

cms/lib/ai_aside_summary_config.py

@@ -27,17 +27,19 @@ def is_enabled(self):
         try:
             from ai_aside.config_api.api import is_summary_config_enabled
             return is_summary_config_enabled(self.course_key)
-        except (ImportError, ModuleNotFoundError):
+        except Exception:
             return False
 
     def is_summary_enabled(self, unit_key=None):
         """
         Define if the summary configuration is enabled in ai_aside
         """
         try:
-            from ai_aside.config_api.api import is_summary_enabled
+            from ai_aside.config_api.api import is_course_present, is_summary_enabled
+            if not is_course_present(self.course_key):
+                return None
             return is_summary_enabled(self.course_key, unit_key)
-        except (ImportError, ModuleNotFoundError):
+        except Exception:
             return None
 
     def set_summary_settings(self, unit_key, settings=None):
@@ -50,5 +52,5 @@ def set_summary_settings(self, unit_key, settings=None):
         try:
             from ai_aside.config_api.api import set_unit_settings
             return set_unit_settings(self.course_key, unit_key, settings)
-        except (ImportError, ModuleNotFoundError):
+        except Exception:
             return None

cms/lib/test/test_ai_aside_summary_config.py

@@ -5,7 +5,7 @@
 
 import sys
 from unittest import TestCase
-from unittest.mock import Mock, patch
+from unittest.mock import Mock
 
 from opaque_keys.edx.keys import CourseKey, UsageKey
 
@@ -36,12 +36,22 @@ def test_is_summary_enabled(self):
         Check the summary configuration value for a particular course and an optional unit using the ai_aside lib.
         """
         ai_aside_summary_config = AiAsideSummaryConfig(self.COURSE_KEY)
+        ai_aside.is_course_present.return_value = True
         ai_aside.is_summary_enabled.return_value = True
         self.assertTrue(ai_aside_summary_config.is_summary_enabled())
 
+        ai_aside.is_course_present.return_value = True
         ai_aside.is_summary_enabled.return_value = False
         self.assertFalse(ai_aside_summary_config.is_summary_enabled(self.UNIT_KEY))
 
+        ai_aside.is_course_present.return_value = False
+        ai_aside.is_summary_enabled.return_value = True
+        self.assertIsNone(ai_aside_summary_config.is_summary_enabled())
+
+        ai_aside.is_course_present.return_value = False
+        ai_aside.is_summary_enabled.return_value = False
+        self.assertIsNone(ai_aside_summary_config.is_summary_enabled(self.UNIT_KEY))
+
     def test_set_summary_settings(self):
         """
         Set the summary configuration settings for a particular unit using the ai_aside lib.