feat: initialize Next.js project with TypeScript, ESLint, and Tailwind CSS

- Added ESLint configuration for Next.js with custom global ignores.
- Created Next.js configuration file with basic setup.
- Initialized package.json with dependencies for Next.js, React, and TypeScript.
- Set up PostCSS configuration for Tailwind CSS.
- Added SVG assets for the project.
- Created TypeScript configuration file with strict settings and Next.js support.
- Defined custom type declarations for Next.js cache life and routing parameters.
- Implemented validation types for Next.js pages and layouts.

types/routes.d.ts

@@ -0,0 +1,57 @@
+// This file is generated automatically by Next.js
+// Do not edit this file manually
+
+type AppRoutes = "/"
+type PageRoutes = never
+type LayoutRoutes = "/"
+type RedirectRoutes = never
+type RewriteRoutes = never
+type Routes = AppRoutes | PageRoutes | LayoutRoutes | RedirectRoutes | RewriteRoutes
+
+
+interface ParamMap {
+  "/": {}
+}
+
+
+export type ParamsOf<Route extends Routes> = ParamMap[Route]
+
+interface LayoutSlotMap {
+  "/": never
+}
+
+
+export type { AppRoutes, PageRoutes, LayoutRoutes, RedirectRoutes, RewriteRoutes, ParamMap }
+
+declare global {
+  /**
+   * Props for Next.js App Router page components
+   * @example
+   * ```tsx
+   * export default function Page(props: PageProps<'/blog/[slug]'>) {
+   *   const { slug } = await props.params
+   *   return <div>Blog post: {slug}</div>
+   * }
+   * ```
+   */
+  interface PageProps<AppRoute extends AppRoutes> {
+    params: Promise<ParamMap[AppRoute]>
+    searchParams: Promise<Record<string, string | string[] | undefined>>
+  }
+
+  /**
+   * Props for Next.js App Router layout components
+   * @example
+   * ```tsx
+   * export default function Layout(props: LayoutProps<'/dashboard'>) {
+   *   return <div>{props.children}</div>
+   * }
+   * ```
+   */
+  type LayoutProps<LayoutRoute extends LayoutRoutes> = {
+    params: Promise<ParamMap[LayoutRoute]>
+    children: React.ReactNode
+  } & {
+    [K in LayoutSlotMap[LayoutRoute]]: React.ReactNode
+  }
+}