Two test layers covering the controller surface that the JVN PoC uses:
Java unit (Spring MockMvc):
RuleChainControllerTest#testScriptForbiddenForCustomer asserts a
customer JWT against POST /api/ruleChain/testScript returns 403,
locking in the existing @PreAuthorize('TENANT_ADMIN') guard.
Black-box (live docker-compose):
JsExecutorSandboxIsolationTest#testRuleChainScriptCannotReachHostProcess
posts the JVN exploit payload as a tenant admin and asserts the
response carries error='process is not defined'. End-to-end through
tb-node -> Kafka -> tb-js-executor with use_sandbox=true.
Registered the new org.thingsboard.server.msa.security package in
the connectivity TestNG suite so the black-box runner picks it up.
Added a thin TestRestClient.testRuleChainScript() helper.