fix(issue-detection): Handle parent-only settings in audit log rendering

ai_issue_detection_enabled has no entry in project_settings_to_group_map
since it doesn't map to a single group type. Add a separate description
mapping for parent-only settings so the audit log renders a meaningful
message when the global AI detection toggle is changed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: roggenkemper

src/sentry/audit_log/events.py

@@ -183,12 +183,19 @@ def render(self, audit_log_entry: AuditLogEntry) -> str:
             project_settings_to_group_map as map,
         )
 
+        PARENT_SETTING_DESCRIPTIONS: dict[str, str] = {
+            "ai_issue_detection_enabled": "AI issue detection",
+        }
+
         data = audit_log_entry.data
-        items_string = ", ".join(
-            f"to {'enable' if value else 'disable'} detection of {map[key].description} issue"
-            for (key, value) in data.items()
-            if key in map.keys()
-        )
+        items = []
+        for key, value in data.items():
+            action = "enable" if value else "disable"
+            if key in map:
+                items.append(f"to {action} detection of {map[key].description} issue")
+            elif key in PARENT_SETTING_DESCRIPTIONS:
+                items.append(f"to {action} {PARENT_SETTING_DESCRIPTIONS[key]}")
+        items_string = ", ".join(items)
         return "edited project performance issue detector settings " + items_string