refactor: Remove /ui path prefix

Removed the /ui basePath from Next.js configuration to serve the app at root path:

- Removed basePath: "/ui" from next.config.ts
- Updated all API route calls from /ui/api/* to /api/*
- App now accessible at root path instead of /ui subdirectory

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

components/sidebar.tsx

@@ -7,7 +7,7 @@ import { cn } from "@/lib/utils";
 import {
   LayoutDashboard,
   FolderKanban,
-  Bug,
+  Webhook,
   BriefcaseBusiness,
   Activity,
   Menu,
@@ -35,7 +35,7 @@ const routes = [
   },
   {
     label: "Spiders",
-    icon: Bug,
+    icon: Webhook,
     href: "/spiders",
   },
   {