feat: Add case review messaging system with feedback and query capabilities

- Introduced CaseReviewMessage model to handle feedback and queries for cases.
- Implemented views for displaying user and CID messages, including outstanding feedback.
- Created templates for collection feedback overview and user messages.
- Added functionality for acknowledging messages and sending feedback or queries.
- Enhanced collection detail view to show outstanding messages and user message statistics.
- Added tests for handling duplicate DICOM uploads without series.

rad.code-workspace

@@ -19,7 +19,8 @@
 			"/^python -m py_compile /home/ross/penracourses/rad/generic/tables\\.py$/": {
 				"approve": true,
 				"matchCommandLine": true
-			}
+			},
+			"/home/ross/penracourses/rad/.venv/bin/python": true
 		}
 	}
 }