v1.1.0 - Dedicated numbers

Dedicated monthly numbers are now first-class: 3 new tools (search_dedicated_countries, purchase_dedicated_number, get_dedicated_number), with toggle_auto_renew and list_orders extended to cover them, and full sandbox parity. 5 countries at launch: US, UK, DE, AU, HK.

• search_dedicated_countries - countries, your monthly price, and live stock status
• purchase_dedicated_number - quote-then-commit purchase with an idempotent retry-safe request
• get_dedicated_number - status plus received SMS with parsed codes
• toggle_auto_renew now accepts ded_xxx ids alongside ren_xxx
• list_orders gains kind: "dedicated"
• rent_number is now verification/long-term rental only; dedicated purchases moved to purchase_dedicated_number

28 tools total. Sandbox mode (VOIDMOB_SANDBOX=1) mirrors the whole dedicated lifecycle against play money.