Add moderator bots and editable MineGeo usernames

tests/account.test.ts

@@ -6,7 +6,16 @@ import {
   displayNameSchema,
   newPasswordSchema,
   profileUpdateSchema,
+  usernameSchema,
 } from "../shared/account";
+test("usernames are normalized, unique-key compatible and changeable through profile updates", () => {
+  assert.equal(usernameSchema.parse("  Perfect_Python500  "), "perfect_python500");
+  assert.deepEqual(profileUpdateSchema.parse({ username: "New_Name" }), { username: "new_name" });
+  for (const bad of ["ab", "a".repeat(33), "name space", "name@server", "юзер", "a\nb"]) assert.equal(usernameSchema.safeParse(bad).success, false);
+  const path = "/moderator-application/" + "a".repeat(64);
+  assert.equal(authDestination(path), path);
+  assert.equal(authDestination(path + "?next=https://evil.example"), "/dashboard");
+});
 import {
   createRecoveryGrant,
   verifyRecoveryGrant,