Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/models/concerns/account_email_rate_limitable.rb

@@ -0,0 +1,53 @@
+module AccountEmailRateLimitable
+  extend ActiveSupport::Concern
+
+  OUTBOUND_EMAIL_TTL = 25.hours.to_i
+  EMAIL_LIMIT_CONFIG_KEY = 'ACCOUNT_EMAILS_LIMIT'.freeze
+
+  def email_rate_limit
+    account_limit || global_limit || default_limit
+  end
+
+  def emails_sent_today
+    Redis::Alfred.get(email_count_cache_key).to_i
+  end
+
+  def email_transcript_enabled?
+    true
+  end
+
+  def within_email_rate_limit?
+    return true if emails_sent_today < email_rate_limit
+
+    Rails.logger.warn("Account #{id} reached daily email rate limit of #{email_rate_limit}. Sent: #{emails_sent_today}")
+    false
+  end
+
+  def increment_email_sent_count
+    Redis::Alfred.incr(email_count_cache_key).tap do |count|
+      Redis::Alfred.expire(email_count_cache_key, OUTBOUND_EMAIL_TTL) if count == 1
+    end
+  end
+
+  private
+
+  def email_count_cache_key
+    @email_count_cache_key ||= format(
+      Redis::Alfred::ACCOUNT_OUTBOUND_EMAIL_COUNT_KEY,
+      account_id: id,
+      date: Time.zone.today.to_s
+    )
+  end
+
+  def account_limit
+    self[:limits]&.dig('emails')&.to_i
+  end
+
+  def global_limit
+    GlobalConfig.get(EMAIL_LIMIT_CONFIG_KEY)[EMAIL_LIMIT_CONFIG_KEY]&.to_i
+  end
+
+  def default_limit
+    ChatwootApp.max_limit.to_i
+  end
+end