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/models/test.py

@@ -59,6 +59,12 @@ class Test(Base):
     execution_date = Column(DateTime, nullable=True)
     # Assign created_by = Column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=True)
     created_by = Column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=True)
+    # The template this test was instantiated from, if any (null for
+    # standalone/manually-created/RT-imported tests). Lets a procedure
+    # suggestion know exactly which template to propose improving —
+    # matching purely by technique would be ambiguous when a technique has
+    # multiple templates.
+    source_template_id = Column(UUID(as_uuid=True), ForeignKey("test_templates.id"), nullable=True)
     # Assign result = Column(Enum(TestResult, name="testresult"), nullable=True)
     result = Column(Enum(TestResult, name="testresult"), nullable=True)
     # Assign state = Column(Enum(TestState, name="teststate"), default=TestState.draft)
@@ -83,6 +89,9 @@ class Test(Base):
 
     # ── Blue Team fields ────────────────────────────────────────────
     blue_summary = Column(Text, nullable=True)
+    # What Blue actually did to detect the attack — Blue's counterpart to
+    # procedure_text. Free text; may be parsed for a procedure suggestion.
+    detect_procedure = Column(Text, nullable=True)
     # Assign detection_result = Column(Enum(TestResult, name="testresult"), nullable=True)
     detection_result = Column(Enum(TestResult, name="testresult"), nullable=True)
     containment_result = Column(Enum(ContainmentResult, name="containmentresult"), nullable=True)