feat: add UI component files and navigation structure

Added various UI components and navigation elements including:
- Section cards and selection components
- Social icon SVGs with horizontal/vertical text variants
- Table, tabs, and toggle components
- Site header and sidebar components
- Tooltip and unauthorized page
- Project configuration files (tsconfig.json)
- Route handlers for health checks
- Utility and hook functions for mobile responsiveness

components/ui/separator.tsx

@@ -0,0 +1,28 @@
+"use client"
+
+import * as React from "react"
+import * as SeparatorPrimitive from "@radix-ui/react-separator"
+
+import { cn } from "@/lib/utils"
+
+function Separator({
+  className,
+  orientation = "horizontal",
+  decorative = true,
+  ...props
+}: React.ComponentProps<typeof SeparatorPrimitive.Root>) {
+  return (
+    <SeparatorPrimitive.Root
+      data-slot="separator-root"
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "bg-border shrink-0 data-[orientation=horizontal]:h-px data-[orientation=horizontal]:w-full data-[orientation=vertical]:h-full data-[orientation=vertical]:w-px",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Separator }