Upgrade noticed to v3 (#69)

The only breaking change in noticed 3.0.0 is dropping Rails 6.1 support;
this app runs Rails 8.1. The notifier API used by ItemTagNotifier
(deliver_by, notification_methods, config.devices/format) is unchanged.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: dadachi

Gemfile

@@ -59,7 +59,7 @@ gem "resend"
 # Push notifications via APNs (iOS) and FCM (Android). Provider integration
 # (apnotic + googleauth + initializer with credentials) lands in a follow-up
 # PR; this PR scaffolds the model + controller + base notifier only.
-gem "noticed", "~> 2.7"
+gem "noticed", "~> 3.0"
 # Fix LoadError: cannot load such file -- csv
 gem "csv", "~> 3.3"
 

Gemfile.lock

@@ -290,7 +290,7 @@ GEM
       racc (~> 1.4)
     nokogiri (1.19.3-x86_64-linux-gnu)
       racc (~> 1.4)
-    noticed (2.9.3)
+    noticed (3.0.0)
       rails (>= 6.1.0)
     orm_adapter (0.5.0)
     os (1.1.4)
@@ -530,7 +530,7 @@ DEPENDENCIES
   minitest-mock
   mission_control-jobs
   nokogiri (>= 1.12.5)
-  noticed (~> 2.7)
+  noticed (~> 3.0)
   overcommit
   pagy (~> 43)
   pg