chore(init): scaffold OpenFrame — Next.js + Bun + shadcn

Initialize OpenFrame project with core scaffold and UI foundation.

- Project scaffold: Next.js 16.1 (App Router) + Bun runtime
- UI: shadcn/ui + TailwindCSS; landing, dashboard, project, and auth UIs
- Video support: provider abstraction (YouTube first), video player page with timestamped comments and custom timeline
- Auth & DB: NextAuth skeleton and Prisma schema (Postgres) included
- UX: dark-mode toggle, full-width layouts, comments sidebar, video route moved to /watch/[videoId]
- Dev: added YouTube iframe integration, custom controls, and TypeScript types
- Next steps: DB migrations, API routes (CRUD), real data wiring, voice-recording & sharing

components/ui/tooltip.tsx

@@ -0,0 +1,57 @@
+"use client"
+
+import * as React from "react"
+import { Tooltip as TooltipPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function TooltipProvider({
+  delayDuration = 0,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Provider>) {
+  return (
+    <TooltipPrimitive.Provider
+      data-slot="tooltip-provider"
+      delayDuration={delayDuration}
+      {...props}
+    />
+  )
+}
+
+function Tooltip({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Root>) {
+  return <TooltipPrimitive.Root data-slot="tooltip" {...props} />
+}
+
+function TooltipTrigger({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Trigger>) {
+  return <TooltipPrimitive.Trigger data-slot="tooltip-trigger" {...props} />
+}
+
+function TooltipContent({
+  className,
+  sideOffset = 0,
+  children,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Content>) {
+  return (
+    <TooltipPrimitive.Portal>
+      <TooltipPrimitive.Content
+        data-slot="tooltip-content"
+        sideOffset={sideOffset}
+        className={cn(
+          "data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-[state=delayed-open]:animate-in data-[state=delayed-open]:fade-in-0 data-[state=delayed-open]:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 rounded-none px-3 py-1.5 text-xs bg-foreground text-background z-50 w-fit max-w-xs origin-(--radix-tooltip-content-transform-origin)",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        <TooltipPrimitive.Arrow className="size-2.5 rotate-45 rounded-none bg-foreground fill-foreground z-50 translate-y-[calc(-50%_-_2px)]" />
+      </TooltipPrimitive.Content>
+    </TooltipPrimitive.Portal>
+  )
+}
+
+export { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger }