Add script to fix active storage links

script/fix-active-storage-links.rb

@@ -0,0 +1,24 @@
+#!/usr/bin/env ruby
+
+require_relative "../config/environment"
+require "uri"
+require "base64"
+require "json"
+
+ActionText::RichText.all.where("body LIKE '%/rails/active_storage/%'").find_each do |rich_text|
+  next unless rich_text.body
+
+  blobs = rich_text.embeds.map(&:blob)
+
+  rich_text.body.send(:attachment_nodes).each do |node|
+    filename = node["filename"]
+
+    blob = blobs.select { |b| b.filename == filename }
+    raise "Multiple blobs with filename #{filename}" if blob.size > 1
+    blob = blob.first
+
+    node["sgid"] = blob.attachable_sgid
+  end
+
+  rich_text.save!
+end