feat: Establish core application structure with user authentication, routing, and Supabase integration.

src/integrations/supabase/supabase.ts

@@ -0,0 +1,24 @@
+import { createServerClient } from "@supabase/ssr"
+import { getCookies, setCookie } from "@tanstack/react-start/server"
+
+export function getSupabaseServerClient() {
+	return createServerClient(
+		process.env.VITE_SUPABASE_URL as string,
+		process.env.VITE_SUPABASE_KEY as string,
+		{
+			cookies: {
+				getAll() {
+					return Object.entries(getCookies()).map(([name, value]) => ({
+						name,
+						value,
+					}))
+				},
+				setAll(cookies) {
+					cookies.forEach((cookie) => {
+						setCookie(cookie.name, cookie.value)
+					})
+				},
+			},
+		}
+	)
+}