Follow-up to imsuperseller's #96740 (cherry-picked as the previous commit).
Widens _CACHE_BUSTING_CONFIG_KEYS with the other construction-baked
compaction-routing settings that had the same stale-cache shape:
compression.in_place, checkpoint_required, micro_compact,
micro_compact_every_n_turns, micro_compact_defrag_threshold_tokens.
Without these, a messaging-gateway session cached before a config edit
keeps the old compaction routing forever.
Not added (reported instead): abort_on_summary_failure, max_attempts,
protect_first_n, codex_gpt55_autoraise_notice, idle_compact_after_seconds
— behavior-tuning rather than routing, left for a deliberate pass.
Teknium
66666f6e2e