fix: preserve all query options in has_many n1ql query_fn

The query_fn rebuilt a fresh Couchbase::Options::Query copying only
scan_consistency, silently dropping every other option the caller set
(timeout, adhoc, client_context_id, profile, etc.). Mutate the existing
options object via #positional_parameters and pass it through, so all
caller-supplied options are retained.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: pimpin

lib/couchbase-orm/utilities/has_many.rb

@@ -97,11 +97,8 @@ def build_index_n1ql(klass, remote_class, remote_method, through_key, foreign_ke
                   n1ql remote_method, emit_key: 'id', query_fn: proc { |bucket, values, options|
                     raise ArgumentError, "values[0] must not be blank" if values[0].blank?
                     n1ql_query = "SELECT raw #{through_key} FROM `#{bucket.name}` where type = \"#{design_document}\" and #{foreign_key} = $1"
-                    params = [values[0]]
-                    cluster.query(n1ql_query, Couchbase::Options::Query.new(
-                      positional_parameters: params,
-                      scan_consistency: options.instance_variable_get(:@scan_consistency)
-                    ))
+                    options.positional_parameters([values[0]])
+                    cluster.query(n1ql_query, options)
                   }
                 end
             else