chore: Clean up report & knowledge base policies (#11234)

- Removes the portal_members table and all associated records
- Updates policies to use custom roles with knowledge_base_manage
permission
- Updates controllers, models, and views to work without portal
membership
- Adds tests for the new permission model

app/models/account.rb

@@ -2,20 +2,19 @@
 #
 # Table name: accounts
 #
-#  id                         :integer          not null, primary key
-#  auto_resolve_duration      :integer
-#  contactable_contacts_count :integer          default(0)
-#  custom_attributes          :jsonb
-#  domain                     :string(100)
-#  feature_flags              :bigint           default(0), not null
-#  internal_attributes        :jsonb            not null
-#  limits                     :jsonb
-#  locale                     :integer          default("en")
-#  name                       :string           not null
-#  status                     :integer          default("active")
-#  support_email              :string(100)
-#  created_at                 :datetime         not null
-#  updated_at                 :datetime         not null
+#  id                    :integer          not null, primary key
+#  auto_resolve_duration :integer
+#  custom_attributes     :jsonb
+#  domain                :string(100)
+#  feature_flags         :bigint           default(0), not null
+#  internal_attributes   :jsonb            not null
+#  limits                :jsonb
+#  locale                :integer          default("en")
+#  name                  :string           not null
+#  status                :integer          default("active")
+#  support_email         :string(100)
+#  created_at            :datetime         not null
+#  updated_at            :datetime         not null
 #
 # Indexes
 #

app/models/portal.rb

@@ -30,14 +30,6 @@ class Portal < ApplicationRecord
   has_many :categories, dependent: :destroy_async
   has_many :folders,  through: :categories
   has_many :articles, dependent: :destroy_async
-  has_many :portal_members,
-           class_name: :PortalMember,
-           dependent: :destroy_async
-  has_many :members,
-           through: :portal_members,
-           class_name: :User,
-           dependent: :nullify,
-           source: :user
   has_one_attached :logo
   has_many :inboxes, dependent: :nullify
   belongs_to :channel_web_widget, class_name: 'Channel::WebWidget', optional: true
@@ -49,8 +41,6 @@ class Portal < ApplicationRecord
   validates :custom_domain, uniqueness: true, allow_nil: true
   validate :config_json_format
 
-  accepts_nested_attributes_for :members
-
   scope :active, -> { where(archived: false) }
 
   CONFIG_JSON_KEYS = %w[allowed_locales default_locale website_token].freeze

app/models/portal_member.rb

@@ -1,20 +0,0 @@
-# == Schema Information
-#
-# Table name: portal_members
-#
-#  id         :bigint           not null, primary key
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
-#  portal_id  :bigint
-#  user_id    :bigint
-#
-# Indexes
-#
-#  index_portal_members_on_portal_id_and_user_id  (portal_id,user_id) UNIQUE
-#  index_portal_members_on_user_id_and_portal_id  (user_id,portal_id) UNIQUE
-#
-class PortalMember < ApplicationRecord
-  belongs_to :portal, class_name: 'Portal'
-  belongs_to :user, class_name: 'User'
-  validates :user_id, uniqueness: { scope: :portal_id }
-end

app/models/user.rb

@@ -95,10 +95,6 @@ class User < ApplicationRecord
   has_many :team_members, dependent: :destroy_async
   has_many :teams, through: :team_members
   has_many :articles, foreign_key: 'author_id', dependent: :nullify, inverse_of: :author
-  has_many :portal_members, class_name: :PortalMember, dependent: :destroy_async
-  has_many :portals, through: :portal_members, source: :portal,
-                     class_name: :Portal,
-                     dependent: :nullify
   # rubocop:disable Rails/HasManyOrHasOneDependent
   # we are handling this in `remove_macros` callback
   has_many :macros, foreign_key: 'created_by_id', inverse_of: :created_by