feat(web): internationalize MCP market UI strings

- Add 19 new i18n keys for market-related UI text in English and Chinese
- Replace hardcoded Chinese strings with i18n translations in Market.tsx
- Update market refresh success message to use i18n key
- Internationalize market selection, configuration, and service browsing UI
- Support multi-language display for market status tags and action buttons

web/src/i18n/en.ts

@@ -1809,6 +1809,23 @@ Memory Bear: After the rebellion, regional warlordism intensified for several re
       testConnectionSuccess: 'Test Connection Successful',
       refreshSuccess: 'Refresh Successful',
       refreshFailed: 'Refresh Failed',
+      
+      // Market related
+      marketSelectTitle: 'Select an MCP Market',
+      marketSelectDesc: 'Choose a market source from the left, configure the connection to browse MCP services',
+      marketRefreshSuccess: 'List refreshed',
+      marketActivated: 'Activated',
+      marketInDatabase: 'In Database',
+      marketAdd: 'Add',
+      marketRefresh: 'Refresh',
+      marketConfig: 'Configure',
+      marketConfigConnection: 'Configure Connection',
+      marketNoServices: 'No MCP Services Available',
+      marketNotConnected: 'Not Connected to This Market',
+      marketNoServicesDesc: 'This market currently has no available services',
+      marketNotConnectedDesc: 'Click the "Configure" button in the upper right corner to set connection information',
+      marketSearchPlaceholder: 'Search services...',
+      marketVisit: 'Visit Market',
       serviceEndpoint: 'Service Endpoint URL',
       serviceEndpointPlaceholder: 'URL of the service endpoint',
       serviceEndpointExtra: 'Complete access address of the MCP service',