Add email notifications for automatically matched locations

[Copilot]

When the daily rake task matches new locations to review sources (Yelp, Google+, etc.), Erik needs visibility into these automatic matches.

Changes

• NotifyMailer: Added account_matched_alert method to send notifications to erik@pickgrapevine.com with location, source, URI, and user details
• Email template: Created account_matched_alert.text.erb with match details, handles cases where user isn't yet associated
• Rake task: Updated add_new_vine to trigger delayed email via NotifyMailer.delay.account_matched_alert
• Tests: Added spec coverage for the new mailer method

# lib/tasks/vineyard_get_source_location_uris.rake
def add_new_vine(parser, location, source_location_uri)
  return if source_location_uri.nil?
  Vine.create(:source_id => parser.id, 
              :location_id => location.id, 
              :source_location_uri => source_location_uri)
  NotifyMailer.delay.account_matched_alert(location, parser.name, source_location_uri)
end

Erik will receive an email each time vineyard:get_source_location_uri:daily_check successfully matches a location to a review source.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Alerting Erik for new accounts that have been matched automatically</issue_title>
<issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Alerting Erik for new accounts that have been matched automatically #11

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