feat: Team APIs (#1654)

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/models/team_member.rb

@@ -0,0 +1,24 @@
+# == Schema Information
+#
+# Table name: team_members
+#
+#  id         :bigint           not null, primary key
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  team_id    :bigint           not null
+#  user_id    :bigint           not null
+#
+# Indexes
+#
+#  index_team_members_on_team_id  (team_id)
+#  index_team_members_on_user_id  (user_id)
+#
+# Foreign Keys
+#
+#  fk_rails_...  (team_id => teams.id)
+#  fk_rails_...  (user_id => users.id)
+#
+class TeamMember < ApplicationRecord
+  belongs_to :user
+  belongs_to :team
+end