feat(tests): add Blue detect_procedure field mapped from template suggestion

Blue Team gets a detect_procedure field on Test (what they actually
did to detect the attack), Blue's counterpart to Red's procedure_text.
It's seeded from a new detect_suggested_procedure field on
TestTemplate at test-creation time, so a junior who later reuses the
same template starts with prior guidance instead of a blank field.

Also adds the procedure_suggestions review table and Test.source_template_id,
laying the groundwork for suggesting template improvements from filled-in
procedure fields (reviewed and approved by a lead, never auto-written).
detect_procedure is archived (not cleared) on Blue reopen, matching
blue_summary, and now appears in the Jira round-archived and blue_review
comments alongside the existing detection/containment fields.

backend/app/services/test_workflow_service.py

@@ -623,7 +623,7 @@ def reopen_blue_review(db: Session, test: Test, user: User, notes: str) -> Test:
         paused_seconds=test.blue_paused_seconds or 0,
         detection_result=test.detection_result, containment_result=test.containment_result,
         detection_time=test.detection_time, containment_time=test.containment_time,
-        blue_summary=test.blue_summary,
+        blue_summary=test.blue_summary, detect_procedure=test.detect_procedure,
         review_notes=notes.strip(), reviewed_by=user.id,
     )
     db.add(archived_round)