v2.35.6
config-loader + propose-participant + creator/owner markers
- _load_config() reading ~/.ceki/config (KEY=VALUE, env wins)
- propose() now accepts reviewer/qa/participants params
- Creator marker resolves via current agent, owner marker via contract data.users[role_id=1]
- _resolve_users(), _resolve_owner(), _resolve_owner_contract_id() internal helpers
- CLI: --reviewer, --qa, --participant flags for propose