chore: remove redundant voice model

Remove app/models/channel/voice.rb as we now use the enterprise version from develop branch after merge.

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

app/models/channel/voice.rb

@@ -1,141 +0,0 @@
-# == Schema Information
-#
-# Table name: channel_voice
-#
-#  id                    :bigint           not null, primary key
-#  additional_attributes :jsonb
-#  phone_number          :string           not null
-#  provider              :string           default("twilio"), not null
-#  provider_config       :jsonb            not null
-#  created_at            :datetime         not null
-#  updated_at            :datetime         not null
-#  account_id            :integer          not null
-#
-# Indexes
-#
-#  index_channel_voice_on_phone_number  (phone_number) UNIQUE
-#
-class Channel::Voice < ApplicationRecord
-  include Channelable
-  include Rails.application.routes.url_helpers
-
-  self.table_name = 'channel_voice'
-
-  validates :phone_number, presence: true, uniqueness: true
-  validates :provider, presence: true
-
-  # Provider-specific configs stored in JSON
-  validates :provider_config, presence: true
-
-  EDITABLE_ATTRS = [:phone_number, :provider, :provider_config].freeze
-
-  def name
-    "#{provider.capitalize} Voice"
-  end
-
-  def initiate_call(to:, conference_name: nil, agent_id: nil)
-    case provider
-    when 'twilio'
-      initiate_twilio_call(to, conference_name, agent_id)
-    # Add more providers as needed
-    # when 'other_provider'
-    #   initiate_other_provider_call(to)
-    else
-      raise "Unsupported voice provider: #{provider}"
-    end
-  end
-
-  private
-
-  def initiate_twilio_call(to, conference_name = nil, agent_id = nil)
-    config = provider_config_hash
-
-    # Generate a public URL for Twilio to request TwiML (must set FRONTEND_URL)
-    host = ENV.fetch('FRONTEND_URL')
-
-    # Use the simplest possible TwiML endpoint
-    callback_url = "#{host}/twilio/voice/simple"
-
-    # Start building query parameters
-    query_params = []
-
-    # Make sure conference_name is URL-safe and correctly formatted
-    if conference_name.present?
-      # Check format - it should be like 'conf_account_123_conv_456'
-      if !conference_name.match?(/^conf_account_\d+_conv_\d+$/)
-        # If format is wrong, log an error and try to fix it
-        Rails.logger.error("🚨 MALFORMED CONFERENCE NAME: '#{conference_name}'")
-
-        # Try to extract account_id and conversation_id from the string if possible
-        if conference_name.include?('_account_') && conference_name.include?('_conv_')
-          # It has the parts but wrong format, let's try to keep it
-          Rails.logger.info("🔄 Using conference name as-is: '#{conference_name}'")
-        else
-          # Can't salvage it, generate a placeholder with timestamp to avoid collisions
-          timestamp = Time.now.to_i
-          Rails.logger.warn("🚨 GENERATING PLACEHOLDER CONFERENCE NAME with timestamp #{timestamp}")
-          conference_name = "conf_placeholder_#{timestamp}"
-        end
-      else
-        # Format looks good, continue
-        Rails.logger.info("✅ VALIDATED CONFERENCE NAME: '#{conference_name}'")
-      end
-
-      # Add URL-encoded conference name as a parameter
-      query_params << "conference_name=#{CGI.escape(conference_name)}"
-    else
-      # No conference name provided, log this as a warning
-      Rails.logger.warn("⚠️ NO CONFERENCE NAME PROVIDED for outgoing call to #{to}")
-    end
-
-    # Add agent ID as a parameter if provided
-    query_params << "agent_id=#{agent_id}" if agent_id.present?
-
-    # Append query parameters to URL if any exist
-    if query_params.any?
-      callback_url += "?#{query_params.join('&')}"
-      Rails.logger.info("📞 OUTBOUND CALL: Using callback URL with params: #{callback_url}")
-    end
-
-    # Parameters including status callbacks for call progress tracking
-    params = {
-      from: phone_number,
-      to: to,
-      url: callback_url,
-      status_callback: "#{host}/twilio/voice/status_callback",
-      status_callback_event: %w[initiated ringing answered completed failed busy no-answer canceled],
-      status_callback_method: 'POST'
-    }
-
-    # Log the full parameters for debugging
-    Rails.logger.info("📞 OUTBOUND CALL PARAMS: to=#{to}, from=#{phone_number}, conference=#{conference_name}")
-
-    # Create the call
-    call = twilio_client(config).calls.create(**params)
-
-    # Return info needed to properly route and track the call
-    {
-      provider: 'twilio',
-      call_sid: call.sid,
-      status: call.status,
-      call_direction: 'outbound',  # CRITICAL: Tag as outbound so webhooks know to prompt agent
-      requires_agent_join: true,   # Flag that agent should join immediately
-      agent_id: agent_id,          # Include agent_id for tracking who initiated the call
-      conference_name: conference_name # Include the conference name in the return value for debugging
-    }
-  end
-
-  def twilio_client(config)
-    Twilio::REST::Client.new(config['account_sid'], config['auth_token'])
-  end
-
-  def provider_config_hash
-    if provider_config.is_a?(Hash)
-      provider_config
-    else
-      JSON.parse(provider_config.to_s)
-    end
-  end
-
-  public :provider_config_hash
-end