feat(lea): add dashboard competence promotion dry run

tests/unit/test_dashboard_routes.py

@@ -54,6 +54,14 @@ class TestDashboardRoutes:
         data = resp.get_json()
         assert 'faiss' in data
 
+    def test_knowledge_base_stats_include_competences(self, client):
+        """La base de connaissances expose les competences supervisees."""
+        resp = client.get('/api/knowledge-base/stats')
+        assert resp.status_code == 200
+        data = resp.get_json()
+        assert 'competences' in data
+        assert 'items' in data['competences']
+
     def test_version(self, client):
         """L'API version retourne la version actuelle."""
         resp = client.get('/api/version')