Add a two-account member/operator journey (`--member`) to the sandbox smoke and
verify the remaining 6 execute commands end-to-end on chain. owner=FAMILY_OWNER
(controls family 1), operator=ACCOUNT_WITH_BONDED_NODE (controls node_id 31):
kick → invite/reject → invite/revoke → invite/accept/leave, each with per-step
state assertions, then restores node 31's membership (verified via --accounts:
family 1 back to 1 member). A real pre-existing family is left exactly as found.
Also adds read-only `--accounts` (prints owner/operator on-chain state) and
generalizes the .env loader to multiple keys (TAURI-WALLET / FAMILY_OWNER /
ACCOUNT_WITH_BONDED_NODE mnemonics) — all read at runtime, never printed.
With the earlier `--write` owner subset (create/update/disband), all 9 families
execute commands + the queries are now confirmed against the deployed sandbox
contract. Tasks 5.2/5.3/5.4 marked done; e2e/README updated.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Yana Matrosova
fcc4cbceea