feat(domain): add domain layer foundation -- enums, value objects, TechniqueEntity, repository ports

backend/app/domain/enums.py

@@ -0,0 +1,37 @@
+"""Canonical domain enums for Aegis.
+
+These enums represent core domain concepts and are the single source of
+truth.  ``models/enums.py`` re-exports them so that existing ORM code
+continues to work without changes.
+"""
+
+import enum
+
+
+class TechniqueStatus(str, enum.Enum):
+    not_evaluated = "not_evaluated"
+    in_progress = "in_progress"
+    validated = "validated"
+    partial = "partial"
+    not_covered = "not_covered"
+    review_required = "review_required"
+
+
+class TestState(str, enum.Enum):
+    draft = "draft"
+    red_executing = "red_executing"
+    blue_evaluating = "blue_evaluating"
+    in_review = "in_review"
+    validated = "validated"
+    rejected = "rejected"
+
+
+class TeamSide(str, enum.Enum):
+    red = "red"
+    blue = "blue"
+
+
+class TestResult(str, enum.Enum):
+    detected = "detected"
+    not_detected = "not_detected"
+    partially_detected = "partially_detected"