chore: Enable "curly" rule to avoid single-statement if confusion/errors.

src/utils.test.ts

@@ -83,7 +83,9 @@ describe("jidToE164", () => {
       .spyOn(fs, "readFileSync")
       // biome-ignore lint/suspicious/noExplicitAny: forwarding to native signature
       .mockImplementation((path: any, encoding?: any) => {
-        if (path === mappingPath) return `"5551234"`;
+        if (path === mappingPath) {
+          return `"5551234"`;
+        }
         return original(path, encoding);
       });
     expect(jidToE164("123@lid")).toBe("+5551234");