More use of tags - drop add_header action -> allow + headers+tags

app/models/rule.rb

@@ -149,6 +149,42 @@ class Rule < ApplicationRecord
     metadata&.dig('header_value')
   end
 
+  # Tag-related methods
+  def tags
+    metadata_hash['tags'] || []
+  end
+
+  def tags=(new_tags)
+    self.metadata = metadata_hash.merge('tags' => Array(new_tags))
+  end
+
+  def add_tag(tag)
+    current_tags = tags
+    return if current_tags.include?(tag.to_s)
+
+    self.metadata = metadata_hash.merge('tags' => (current_tags + [tag.to_s]))
+  end
+
+  def remove_tag(tag)
+    current_tags = tags
+    return unless current_tags.include?(tag.to_s)
+
+    self.metadata = metadata_hash.merge('tags' => (current_tags - [tag.to_s]))
+  end
+
+  def has_tag?(tag)
+    tags.include?(tag.to_s)
+  end
+
+  # Headers for add_header action or metadata-based header injection
+  def headers
+    metadata_hash['headers'] || {}
+  end
+
+  def headers=(new_headers)
+    self.metadata = metadata_hash.merge('headers' => new_headers.to_h)
+  end
+
   def related_surgical_rules
     if surgical_block?
       # Find the corresponding exception rule