v0.9.0

Changelog

• 8cbe57c feat(cli): aic ads conversions send — Meta CAPI passthrough
• 02f46e0 feat(cli): aic keys create --scope '*' (project- or team-bound), drop --full-access
• c845027 fix(billing): auto-recharge config takes integer cents, not float USD
• 75c5c9e fix(billing): client idempotency key for topup to stop double-charge on retry
• f69d257 fix(cli): dedup list/retry helpers; write credentials atomically at 0600
• ac2cccc fix(cli): route mail List* through shared listPath helper (DRY)
• 2687dec test(cli): assert SendConversions relays >=400 status+body verbatim (no error conversion)