Restructure omni services and add Chatwoot research snapshot

research/chatwoot/enterprise/app/models/article_embedding.rb

@@ -0,0 +1,31 @@
+# == Schema Information
+#
+# Table name: article_embeddings
+#
+#  id         :bigint           not null, primary key
+#  embedding  :vector(1536)
+#  term       :text             not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  article_id :bigint           not null
+#
+# Indexes
+#
+#  index_article_embeddings_on_embedding  (embedding) USING ivfflat
+#
+class ArticleEmbedding < ApplicationRecord
+  belongs_to :article
+  has_neighbors :embedding, normalize: true
+
+  after_commit :update_response_embedding
+
+  delegate :account_id, to: :article
+
+  private
+
+  def update_response_embedding
+    return unless saved_change_to_term? || embedding.nil?
+
+    Captain::Llm::UpdateEmbeddingJob.perform_later(self, term)
+  end
+end