setup supabase and dev QoL features

src/composables/useSupabase.ts

@@ -0,0 +1,15 @@
+import type { Database } from '@/types/supabase'
+import { createClient } from '@supabase/supabase-js'
+
+const supabaseUrl = import.meta.env.VITE_SUPABASE_URL
+const supabasePublishableKey = import.meta.env.VITE_SUPABASE_PUBLISHABLE_KEY
+
+if (!supabaseUrl || !supabasePublishableKey) {
+  throw new Error('Missing Supabase env variables. Check your .env file.')
+}
+
+const supabase = createClient<Database>(supabaseUrl, supabasePublishableKey)
+
+export function useSupabase() {
+  return supabase
+}