feat(techniques): add external_references storage and display MITRE sources with links

backend/alembic/versions/b049_add_technique_external_references.py

@@ -0,0 +1,26 @@
+"""Add external_references column to techniques table.
+
+Revision ID: b049
+Revises: b048
+Create Date: 2026-06-18
+"""
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects.postgresql import JSONB
+
+revision = "b049"
+down_revision = "b048"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "techniques",
+        sa.Column("external_references", JSONB, nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("techniques", "external_references")

backend/app/models/technique.py

@@ -59,6 +59,8 @@ class Technique(Base):
     review_required = Column(Boolean, default=False)
     # Assign last_review_date = Column(DateTime, nullable=True)
     last_review_date = Column(DateTime, nullable=True)
+    # Assign external_references = Column(JSONB, nullable=True, default=list)
+    external_references = Column(JSONB, nullable=True, default=list)
 
     # Relationships
     tests = relationship("Test", back_populates="technique")

backend/app/services/mitre_sync_service.py

@@ -263,6 +263,8 @@ def sync_mitre(db: Session) -> dict:
         is_subtechnique = "." in mitre_id
         # Assign parent_mitre_id = mitre_id.split(".")[0] if is_subtechnique else None
         parent_mitre_id = mitre_id.split(".")[0] if is_subtechnique else None
+        # Assign external_references = obj.get("external_references", [])
+        external_references = obj.get("external_references", [])
 
         # Assign existing = existing_techniques.get(mitre_id)
         existing = existing_techniques.get(mitre_id)
@@ -289,6 +291,8 @@ def sync_mitre(db: Session) -> dict:
                 is_subtechnique=is_subtechnique,
                 # Keyword argument: parent_mitre_id
                 parent_mitre_id=parent_mitre_id,
+                # Keyword argument: external_references
+                external_references=external_references,
                 # Keyword argument: status_global
                 status_global=TechniqueStatus.not_evaluated,
                 # Keyword argument: review_required
@@ -331,6 +335,8 @@ def sync_mitre(db: Session) -> dict:
             existing.is_subtechnique = is_subtechnique
             # Assign existing.parent_mitre_id = parent_mitre_id
             existing.parent_mitre_id = parent_mitre_id
+            # Assign existing.external_references = external_references
+            existing.external_references = external_references
 
             # Check: changes
             if changes:

backend/app/services/technique_query_service.py

@@ -131,4 +131,5 @@ def get_technique_detail(db: Session, mitre_id: str) -> dict:
             }
             for item in intel_items
         ],
+        "external_references": technique.external_references or [],
     }