feat(trash): /api/trash blueprint + flip REST DELETE handlers to soft-delete

tests/test_routes_trash.py

@@ -0,0 +1,32 @@
+"""Structural tests for the trash blueprint + delete-flip contracts."""
+import inspect
+
+
+def test_trash_blueprint_registered():
+    from fabledassistant.routes.trash import trash_bp
+    assert trash_bp.name == "trash"
+    assert trash_bp.url_prefix == "/api/trash"
+
+
+def test_trash_blueprint_registered_in_app():
+    from fabledassistant.app import create_app
+    app = create_app()
+    assert "trash" in app.blueprints
+
+
+def test_trash_handlers_callable():
+    from fabledassistant.routes import trash as trash_routes
+    for name in ("list_trash", "restore_batch", "purge_batch"):
+        assert callable(getattr(trash_routes, name))
+
+
+def test_trash_service_surface():
+    from fabledassistant.services import trash as svc
+    for fn_name in ("delete", "restore", "purge", "list_trash", "purge_expired", "alive"):
+        assert hasattr(svc, fn_name), f"trash service missing {fn_name}"
+
+
+def test_delete_service_signature():
+    from fabledassistant.services.trash import delete
+    params = inspect.signature(delete).parameters
+    assert "user_id" in params and "entity_type" in params and "entity_id" in params