refactor: split startup lifecycle and Anki service architecture

docs/public/config.example.jsonc

@@ -82,6 +82,12 @@
       "notificationType": "osd",
       "autoUpdateNewCards": true
     },
+    "nPlusOne": {
+      "highlightEnabled": false,
+      "refreshMinutes": 1440,
+      "matchMode": "headword",
+      "decks": []
+    },
     "metadata": {
       "pattern": "[SubMiner] %f (%t)"
     },