feat: implement i18n

frontend/src/core/i18n/locales/en-US.ts

@@ -0,0 +1,86 @@
+import type { Translations } from "./types";
+
+export const enUS: Translations = {
+  // Common
+  common: {
+    home: "Home",
+    settings: "Settings",
+    delete: "Delete",
+    openInNewWindow: "Open in new window",
+    close: "Close",
+    more: "More",
+    search: "Search",
+    download: "Download",
+    thinking: "Thinking",
+    artifacts: "Artifacts",
+  },
+
+  // Welcome
+  welcome: {
+    greeting: "👋 Hello, again!",
+    description:
+      "Welcome to 🦌 DeerFlow, an open source super agent. With built-in and custom skills, DeerFlow helps you search on the web, analyze data, and generate artifacts like slides, web pages and do almost anything.",
+  },
+
+  // Clipboard
+  clipboard: {
+    copyToClipboard: "Copy to clipboard",
+    copiedToClipboard: "Copied to clipboard",
+    failedToCopyToClipboard: "Failed to copy to clipboard",
+  },
+
+  // Input Box
+  inputBox: {
+    placeholder: "How can I assist you today?",
+    thinkingEnabled: "Thinking is enabled",
+    thinkingDisabled: "Thinking is disabled",
+    clickToDisableThinking: "Click to disable thinking",
+    clickToEnableThinking: "Click to enable thinking",
+    searchModels: "Search models...",
+  },
+
+  // Sidebar
+  sidebar: {
+    newChat: "New chat",
+    chats: "Chats",
+    recentChats: "Recent chats",
+  },
+
+  // Breadcrumb
+  breadcrumb: {
+    workspace: "Workspace",
+    chats: "Chats",
+  },
+
+  // Workspace
+  workspace: {
+    githubTooltip: "DeerFlow on Github",
+  },
+
+  // Conversation
+  conversation: {
+    noMessages: "No messages yet",
+    startConversation: "Start a conversation to see messages here",
+  },
+
+  // Chats
+  chats: {
+    searchChats: "Search chats",
+  },
+
+  // Tool calls
+  toolCalls: {
+    moreSteps: (count: number) => `${count} more step${count === 1 ? "" : "s"}`,
+    lessSteps: "Less steps",
+    executeCommand: "Execute command",
+    presentFiles: "Present files",
+    needYourHelp: "Need your help",
+    useTool: (toolName: string) => `Use "${toolName}" tool`,
+    searchForRelatedInfo: "Search for related information",
+    searchOnWebFor: (query: string) => `Search on the web for "${query}"`,
+    viewWebPage: "View web page",
+    listFolder: "List folder",
+    readFile: "Read file",
+    writeFile: "Write file",
+  },
+};