add winner endpoints

migrations/20230416145528_winners.sql

@@ -0,0 +1,17 @@
+CREATE TABLE prizes (
+    id SERIAL PRIMARY KEY,
+    name VARCHAR NOT NULL,
+    points_min INTEGER NOT NULL,
+    description TEXT NOT NULL,
+    directions_to_claim TEXT NOT NULL
+);
+
+CREATE TABLE winners (
+    id SERIAL PRIMARY KEY,
+    user_id INTEGER NOT NULL,
+    prize_id INTEGER NOT NULL,
+    date TIMESTAMP NOT NULL,
+    claimed BOOLEAN NOT NULL DEFAULT FALSE,
+    FOREIGN KEY (user_id) REFERENCES users(id),
+    FOREIGN KEY (prize_id) REFERENCES prizes(id)
+);