fix(bot): issue #143 — sleep mode safety guards + super-admin seed access
- sleepGuard.js: assertShopOpen/redirectIfPaused — blocks write-flows on shop pause, redirects to AI dialog, fallback to sleep message
- Blocked: buy/pay/quantity/top-up/deposit/wallet-create when paused
- Soft redirect: catalog navigation (country/city/district/category/product) to AI on pause
- Read-only flows untouched (purchase history, balance, tx history)
- Tests: 10 sleepGuard tests (T1-T6 + alias + fallback), 42 total pass
- fix(admin): super-admin seed phrases not blocked by commission (informational only)
- wallet test mock updated for sleepGuard
338a700b3a