feat(android): add plugin registry files for Capacitor 6

- Add root-level capacitor.plugins.json with DailyNotification plugin entry
- Add plugins file with plugin class mapping
- These files may be generated by annotation processor or build tools
- Ensures plugin discovery works across different Capacitor configurations

plugins

@@ -0,0 +1,6 @@
+[
+  {
+    "name": "DailyNotification",
+    "class": "com.timesafari.dailynotification.DailyNotificationPlugin"
+  }
+]