add claim event timeline model

Gemfile.lock

@@ -131,6 +131,17 @@ PATH
     veteran_confirmation (0.0.1)
     vye (0.1.0)
 
+GEM
+  remote: https://enterprise.contribsys.com/
+  specs:
+    sidekiq-ent (7.2.2)
+      einhorn (~> 1.0)
+      gserver
+      sidekiq (>= 7.2.0, < 8)
+      sidekiq-pro (>= 7.2.0, < 8)
+    sidekiq-pro (7.2.0)
+      sidekiq (>= 7.2.0, < 8)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -395,6 +406,7 @@ GEM
       dry-initializer (~> 3.0)
       dry-schema (>= 1.12, < 2)
       zeitwerk (~> 2.6)
+    einhorn (1.0.0)
     erubi (1.12.0)
     et-orbi (1.2.7)
       tzinfo
@@ -878,7 +890,7 @@ GEM
     rswag-ui (2.13.0)
       actionpack (>= 3.1, < 7.2)
       railties (>= 3.1, < 7.2)
-    rubocop (1.63.3)
+    rubocop (1.63.2)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -1232,6 +1244,8 @@ DEPENDENCIES
   shoulda-matchers
   shrine
   sidekiq (~> 7.2.0)
+  sidekiq-ent!
+  sidekiq-pro!
   sidekiq_alive
   simple_forms_api!
   simplecov