feat(compliance): data classification fields and retention policies job [FASE-3.5]

backend/app/schemas/test.py

@@ -5,6 +5,7 @@ from datetime import datetime
 
 from pydantic import BaseModel, ConfigDict
 
+from app.domain.enums import DataClassification
 from app.models.enums import TestResult, TestState
 
 
@@ -25,6 +26,12 @@ class TestCreate(BaseModel):
 # ── Update (general) ───────────────────────────────────────────────
 
 
+class TestClassificationUpdate(BaseModel):
+    """Admin-only payload for changing data classification."""
+
+    data_classification: DataClassification
+
+
 class TestUpdate(BaseModel):
     """Payload for partially updating an existing test.
     Every field is optional so callers send only what changed."""
@@ -152,6 +159,7 @@ class TestOut(BaseModel):
     # Re-test fields
     retest_of: uuid.UUID | None = None
     retest_count: int = 0
+    data_classification: str = "internal"
 
     # Technique info (populated when joined)
     technique_mitre_id: str | None = None