Fix all TypeScript errors; remove unused element/magicui components

- Add missing deps: @base-ui/react, react-hook-form, next-themes, react-is
- Bump recharts to 3.9.1 and update chart.tsx to the recharts v3-compatible
  shadcn version
- Pin react-resizable-panels to v3 (v4 renamed the PanelGroup exports)
- Add showCloseButton prop to DialogContent (used by CommandDialog)
- Replace custom cn with standard clsx + twMerge (fixes Base UI className
  types and object-syntax classes being dropped at runtime)
- Clean up tsconfig (drop dead Vite project references; Next.js updated
  moduleResolution/jsx during build)
- Remove unused components/elements and components/magicui, drop bun.lock
  in favor of yarn.lock, simplify app/page.tsx

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019bE5ox6WnAPgqRgkx3pLCu

components/ui/dialog.tsx

@@ -50,8 +50,10 @@ DialogOverlay.displayName = DialogPrimitive.Overlay.displayName;
 
 const DialogContent = React.forwardRef<
   React.ElementRef<typeof DialogPrimitive.Content>,
-  React.ComponentPropsWithoutRef<typeof DialogPrimitive.Content>
->(({ className, children, ...props }, ref) => (
+  React.ComponentPropsWithoutRef<typeof DialogPrimitive.Content> & {
+    showCloseButton?: boolean;
+  }
+>(({ className, children, showCloseButton = true, ...props }, ref) => (
   <DialogPortal>
     <DialogOverlay />
     {/* Wrapper div handles centering, so animation transforms don't interfere */}
@@ -68,10 +70,12 @@ const DialogContent = React.forwardRef<
         {...props}
       >
         {children}
-        <DialogPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground">
-          <RiCloseLine className="h-4 w-4" />
-          <span className="sr-only">Close</span>
-        </DialogPrimitive.Close>
+        {showCloseButton && (
+          <DialogPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground">
+            <RiCloseLine className="h-4 w-4" />
+            <span className="sr-only">Close</span>
+          </DialogPrimitive.Close>
+        )}
       </DialogPrimitive.Content>
     </div>
   </DialogPortal>