feat(extension): wire smart account routes and entry point

Smart Account UI를 앱에 연결합니다.

- index.tsx: /wallet/smart-account, /wallet/smart-account/confirm 라우트 등록
- wallet/index.ts: 페이지 컴포넌트 re-export
- account-item.tsx: 계정 드롭다운에 "EVM Smart Account" 메뉴 항목 추가 (eip7702 체인 있을 때만)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jungcome7

apps/extension/src/index.tsx

@@ -66,6 +66,8 @@ import {
   WalletDeletePage,
   WalletSelectPage,
   WalletShowSensitivePage,
+  SmartAccountPage,
+  SmartAccountConfirmPage,
 } from "./pages/wallet";
 import { SuggestChainPage } from "./pages/suggest-chain";
 import { ModalRootProvider } from "./components/modal";
@@ -549,6 +551,14 @@ const RoutesAfterReady: FunctionComponent = observer(() => {
                 path="/wallet/show-sensitive"
                 element={<WalletShowSensitivePage />}
               />
+              <Route
+                path="/wallet/smart-account"
+                element={<SmartAccountPage />}
+              />
+              <Route
+                path="/wallet/smart-account/confirm"
+                element={<SmartAccountConfirmPage />}
+              />
               <Route path="/suggest-chain" element={<SuggestChainPage />} />
               <Route path="/ibc-transfer" element={<IBCTransferPage />} />
               <Route

apps/extension/src/pages/main/components/account-switch-float-modal/account-item.tsx

@@ -24,6 +24,7 @@ import { useGetIcnsName } from "../../../../hooks/use-get-icns-name";
 import { ContextMenuStyles } from "../../../../components/context-menu";
 import { AccountNameIcon } from "../account-icon";
 import { PortalTooltip } from "../../../../components/tooltip/portal";
+import { useEip7702Chains } from "../../../wallet/smart-account/hooks/use-eip7702-chains";
 
 const Styles = {
   AccountItem: styled.div<{ isSelected: boolean }>`
@@ -145,6 +146,7 @@ export const AccountItemSwitchModal = observer(
 
     const icnsPrimaryName = useGetIcnsName(bech32Address);
     const paragraph = useGetKeyInfoParagraph(keyInfo, true);
+    const eip7702Chains = useEip7702Chains();
     const dropdownItems = (() => {
       const defaults = [
         {
@@ -186,6 +188,20 @@ export const AccountItemSwitchModal = observer(
         }
       }
 
+      // Smart Account menu — only for software wallets with at least one EIP-7702 chain
+      if (
+        (keyInfo.type === "mnemonic" || keyInfo.type === "private-key") &&
+        eip7702Chains.length > 0
+      ) {
+        defaults.splice(defaults.length - 1, 0, {
+          key: "smart-account",
+          label: intl.formatMessage({
+            id: "page.wallet.keyring-item.dropdown.smart-account-title",
+          }),
+          onSelect: () => navigate(`/wallet/smart-account?id=${keyInfo.id}`),
+        });
+      }
+
       return defaults;
     })();
 

apps/extension/src/pages/wallet/index.ts

@@ -2,3 +2,4 @@ export * from "./select";
 export * from "./delete";
 export * from "./change-name";
 export * from "./show-sensitive";
+export { SmartAccountPage, SmartAccountConfirmPage } from "./smart-account";