[PASS] Update::isMessage true for message update
[PASS] Update::updateId reads update_id
[PASS] Update::chatId reads chat.id
[PASS] Update::isPrivateChat true for private chat
[PASS] Update::fromId reads from.id
[PASS] Update::fromUsername reads from.username
[PASS] Update::isCommand true for "/start ..."
[PASS] Update::command returns "start" (payload split correctly)
[PASS] Update::commandArgs returns payload "ref_ABC123"
[PASS] Update::command strips @botname suffix and lowercases
[PASS] Update::commandArgs empty when no args after command
[PASS] Update::isCommand false for plain text
[PASS] Update::command null for plain text
[PASS] Update::isCallbackQuery true
[PASS] Update::callbackQueryId reads id
[PASS] Update::callbackData reads data
[PASS] Update::chatId resolves via callback_query.message.chat
[PASS] Update::isMyChatMember true
[PASS] Update::myChatMemberBlocked true when new_status=kicked
[PASS] Update::myChatMemberUnblocked false when blocking
[PASS] Update::myChatMemberUnblocked true when new_status=member after kicked
[PASS] Update::type returns "other" for unsupported types
[PASS] Update::chatId is null for unsupported types (no notice/warning)
[PASS] Update::fromArray([]) does not throw and updateId defaults to 0
[PASS] Update::fromId is null on empty update
[PASS] Update::text is null on empty update
[PASS] AdminAuthService::isAdmin true for configured admin id
[PASS] AdminAuthService::isAdmin false for non-admin id
[PASS] AdminAuthService::isAdmin false when admins.ids missing entirely
[PASS] Security::equals true for matching secret
[PASS] Security::equals false for wrong secret
[PASS] Security::equals false for empty provided secret

PHASE 3 UNIT TEST RESULT: OK (0 failures)