Reduce strike action timeout from 1 hour to 5 minutes

- Updated strike level 3 timeout duration from 3600s (1 hour) to 300s (5 minutes)
- Changes applied across models, config defaults, templates, schemas, and tests
- Makes moderation system less harsh while maintaining discipline

config/guilds/example-guild-123456789.yml

@@ -39,7 +39,7 @@ settings:
         action: warn
       "3":                          # At 3 strikes: 1 hour timeout
         action: timeout
-        duration: 3600
+        duration: 300
       "5":                          # At 5 strikes: kick from server
         action: kick
       "7":                          # At 7 strikes: ban from server