feat(title-bar): add folder-actions menu and branch dropdown with git operations

src/components/layout/new-folder-dropdown.tsx

@@ -0,0 +1,79 @@
+"use client"
+
+import { useState } from "react"
+import { FolderOpen, FolderPlus, GitBranch, Rocket } from "lucide-react"
+import { useTranslations } from "next-intl"
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu"
+import { Button } from "@/components/ui/button"
+import { openProjectBootWindow } from "@/lib/api"
+import { isDesktop, openFileDialog } from "@/lib/platform"
+import { useAppWorkspace } from "@/contexts/app-workspace-context"
+import { CloneDialog } from "@/components/layout/clone-dialog"
+import { DirectoryBrowserDialog } from "@/components/shared/directory-browser-dialog"
+
+export function NewFolderDropdown() {
+  const t = useTranslations("Folder.folderNameDropdown")
+  const { openFolder } = useAppWorkspace()
+  const [cloneOpen, setCloneOpen] = useState(false)
+  const [browserOpen, setBrowserOpen] = useState(false)
+
+  async function handleOpenFolder() {
+    if (isDesktop()) {
+      const selected = await openFileDialog({
+        directory: true,
+        multiple: false,
+      })
+      if (selected) {
+        await openFolder(Array.isArray(selected) ? selected[0] : selected)
+      }
+    } else {
+      setBrowserOpen(true)
+    }
+  }
+
+  return (
+    <>
+      <DropdownMenu>
+        <DropdownMenuTrigger asChild>
+          <Button
+            variant="ghost"
+            size="icon"
+            className="h-6 w-6 hover:text-foreground/80"
+            title={t("openFolder")}
+          >
+            <FolderPlus className="h-3.5 w-3.5" />
+          </Button>
+        </DropdownMenuTrigger>
+        <DropdownMenuContent className="min-w-56" align="start">
+          <DropdownMenuItem onSelect={handleOpenFolder}>
+            <FolderOpen className="h-3.5 w-3.5 shrink-0" />
+            {t("openFolder")}
+          </DropdownMenuItem>
+          <DropdownMenuItem onSelect={() => setCloneOpen(true)}>
+            <GitBranch className="h-3.5 w-3.5 shrink-0" />
+            {t("cloneRepository")}
+          </DropdownMenuItem>
+          <DropdownMenuItem onSelect={() => openProjectBootWindow()}>
+            <Rocket className="h-3.5 w-3.5 shrink-0" />
+            {t("projectBoot")}
+          </DropdownMenuItem>
+        </DropdownMenuContent>
+      </DropdownMenu>
+      <CloneDialog open={cloneOpen} onOpenChange={setCloneOpen} />
+      <DirectoryBrowserDialog
+        open={browserOpen}
+        onOpenChange={setBrowserOpen}
+        onSelect={(path) => {
+          openFolder(path).catch((err) => {
+            console.error("[NewFolderDropdown] failed to open folder:", err)
+          })
+        }}
+      />
+    </>
+  )
+}