feat: initial commit

src/hooks/use-vocab.ts

@@ -0,0 +1,16 @@
+import { useQuery } from "@tanstack/react-query"
+import { supabase } from "@/lib/supabase"
+
+export function useVocab(topic?: string) {
+  return useQuery({
+    queryKey: ["vocab", topic],
+    queryFn: async () => {
+      let query = supabase.from("vocab").select("*")
+      if (topic) query = query.eq("topic", topic.toLowerCase())
+      const { data, error } = await query
+      if (error) throw error
+      return data
+    },
+    enabled: false, // Enabled during feature implementation
+  })
+}