Add prompts category

backend/supabase/compatibility_prompts.sql

@@ -2,6 +2,7 @@ CREATE TABLE IF NOT EXISTS compatibility_prompts (
     answer_type TEXT DEFAULT 'free_response' NOT NULL,
     created_time TIMESTAMPTZ DEFAULT now() NOT NULL,
     creator_id TEXT,
+    category TEXT,
     id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
     importance_score NUMERIC DEFAULT 0 NOT NULL,
     multiple_choice_options JSONB,