fix(auth): revoke captured client sessions safely on logout

src/api/session.test.mjs

@@ -1,6 +1,7 @@
 import assert from 'node:assert/strict'
 import test from 'node:test'
 import {
+  accessTokenIdentity,
   ACCESS_TOKEN_KEY,
   REFRESH_TOKEN_KEY,
   REMEMBERED_LOGIN_ID_KEY,
@@ -68,3 +69,22 @@ test('normal token rotation never removes either shared token between writes', (
   assert.ok(!removed.includes(ACCESS_TOKEN_KEY))
   assert.ok(!removed.includes(REFRESH_TOKEN_KEY))
 })
+
+function rawIdentity(overrides = '') {
+ return `test.${Buffer.from(`{"user_id":2107003446494334978,"tenant_id":2107003446494334978,"membership_id":2107003446494334978,"app_code":"MERCHANT"${overrides}}`).toString('base64url')}.test`
+}
+test('identity preserves low digits of numeric 19 digit user customer and membership',()=>{
+ const original=rawIdentity();const json=Buffer.from(original.split('.')[1],'base64url').toString();
+ for(const field of ['user_id','tenant_id','membership_id']){
+ const changed=json.replace(`"${field}":2107003446494334978`,`"${field}":2107003446494334979`)
+ assert.notEqual(accessTokenIdentity(original),accessTokenIdentity(`test.${Buffer.from(changed).toString('base64url')}.test`))
+ }
+})
+test('identity string and numeric integers are equivalent without changing other strings',()=>{
+ const a=rawIdentity();const raw=Buffer.from(a.split('.')[1],'base64url').toString();
+ const b=`test.${Buffer.from(raw.replaceAll(':2107003446494334978',':"2107003446494334978"')).toString('base64url')}.test`
+ assert.equal(accessTokenIdentity(a),accessTokenIdentity(b))
+ const decorated=rawIdentity(',"username":'+JSON.stringify('number 2107003446494334979 and "tenant_id":2107003446494334979')+',"note":"1234567890123456789"')
+ assert.equal(accessTokenIdentity(a),accessTokenIdentity(decorated))
+ assert.ok(accessTokenIdentity(a).includes('2107003446494334978'))
+})