Fix: test; limit changes on player update

migrations/001_initial_schema.up.sql

@@ -38,11 +38,12 @@ CREATE TABLE word_cards (
 );
 
 CREATE TABLE card_marks (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
     card_id INTEGER NOT NULL,
     username TEXT NOT NULL,
     active BOOLEAN NOT NULL DEFAULT TRUE,
-    FOREIGN KEY (card_id) REFERENCES word_cards(id) ON DELETE CASCADE
+    FOREIGN KEY (card_id) REFERENCES word_cards(id) ON DELETE CASCADE,
+    FOREIGN KEY (username) REFERENCES players(username) ON DELETE CASCADE,
+    PRIMARY KEY (card_id, username)
 );
 
 CREATE TABLE actions (
@@ -75,4 +76,4 @@ CREATE TABLE sessions(
     token_key TEXT NOT NULL DEFAULT '' UNIQUE, -- encoded value
     username TEXT NOT NULL,
     FOREIGN KEY (username) REFERENCES players(username) ON DELETE CASCADE
-);
+);