Add email notifications (sendmail) + membership sweep (scheduler): welcome email on webhook, reconcile endpoint, daily sweep

CloudronManifest.json

@@ -11,6 +11,13 @@
     "oidc": {
       "loginRedirectUri": "/",
       "logoutRedirectUri": "/"
+    },
+    "sendmail": {},
+    "scheduler": {
+      "membership_sweep": {
+        "schedule": "0 3 * * *",
+        "command": "/app/code/sweep.sh"
+      }
     }
   },
   "manifestVersion": 2,