fix(coverage): partial coverage when mix of detected+not_detected; add bulk recalculate endpoint

backend/app/domain/entities/technique.py

@@ -271,13 +271,13 @@ class TechniqueEntity:
                 else:
                     self.status_global = TechniqueStatus.partial
             elif any(
-                # Keyword argument: r
+                r in (TestResult.detected, "detected",
-                r == TestResult.partially_detected or r == "partially_detected"
+                      TestResult.partially_detected, "partially_detected")
                 for r in results
             ):
-                # Assign self.status_global = TechniqueStatus.partial
+                # Mix of detected + not_detected, or any partially_detected → partial
                 self.status_global = TechniqueStatus.partial
-            # Fallback: handle remaining cases
+            # Fallback: handle remaining cases (all not_detected)
             else:
                 # Assign self.status_global = TechniqueStatus.not_covered
                 self.status_global = TechniqueStatus.not_covered

backend/app/routers/system.py

@@ -824,6 +824,38 @@ def re_enrich_evaluation_round(
     return summary
 
 
+@router.post("/recalculate-coverage")
+def recalculate_all_coverage(
+    db: Session = Depends(get_db),
+    current_user: User = Depends(require_role("admin")),
+):
+    """Recompute status_global for every technique based on its current tests.
+
+    **Requires** the ``admin`` role.
+    Run this after logic changes to the coverage scoring rules.
+    """
+    from app.models.technique import Technique
+    from app.services.status_service import recalculate_technique_status
+
+    techniques = db.query(Technique).all()
+    updated = 0
+    for tech in techniques:
+        old_status = tech.status_global
+        recalculate_technique_status(db, tech)
+        if tech.status_global != old_status:
+            updated += 1
+    db.commit()
+    logger.info(
+        "Bulk coverage recalculation: %d/%d techniques updated (by %s)",
+        updated, len(techniques), current_user.email,
+    )
+    return {
+        "total": len(techniques),
+        "updated": updated,
+        "message": f"Coverage recalculated for {len(techniques)} techniques. {updated} statuses changed.",
+    }
+
+
 @router.post("/email-test")
 def send_test_email(
     payload: EmailTestRequest,

backend/tests/test_technique_entity.py

@@ -135,6 +135,18 @@ class TestRecalculateStatus:
         tests = [("validated", "not_detected"), ("validated", "not_detected")]
         assert e.recalculate_status(tests) == TechniqueStatus.not_covered
 
+    def test_all_validated_mix_detected_and_not_detected_gives_partial(self):
+        e = _entity()
+        tests = [
+            ("validated", "detected"),
+            ("validated", "detected"),
+            ("validated", "detected"),
+            ("validated", "detected"),
+            ("validated", "detected"),
+            ("validated", "not_detected"),
+        ]
+        assert e.recalculate_status(tests) == TechniqueStatus.partial
+
     def test_all_validated_no_results_gives_not_covered(self):
         e = _entity()
         tests = [("validated", None)]