chore: pass PR1 verification gate (format, lint, coverage)

src/content/__tests__/definitions.test.ts

@@ -16,9 +16,11 @@ describe('M1 stub content pack', () => {
   it('can simulate a costed action without throwing', () => {
     const state = createGameState(content);
     const trade = content.actions.find((a) => a.costs.length > 0);
-    expect(trade).toBeDefined();
-    enqueueAction(state, content, trade!.id);
-    tickGame(state, content, trade!.durationMs);
+    if (!trade) {
+      throw new Error('expected at least one costed action');
+    }
+    enqueueAction(state, content, trade.id);
+    tickGame(state, content, trade.durationMs);
     expect(state.activeActionId).toBeNull();
   });
 });