add model versioning log and crono

Gemfile

Gemfile.lock

app/jobs/telegram_group_chat_notification_job.rb

app/models/assignment.rb

app/models/model_version.rb

app/models/notification_channel.rb

app/models/user.rb

app/subscribers/assignment_audit_subscriber.rb

app/subscribers/telegram_bot_subscriber.rb

config/cronotab.rb

config/initializers/subscribers.rb

config/routes.rb

db/migrate/20240526145439_create_model_versions.rb

db/migrate/20240526145815_add_action_to_model_version.rb

db/migrate/20240526151339_create_crono_jobs.rb

db/schema.rb

test/fixtures/model_versions.yml

test/models/model_version_test.rb