Moves 290 root test-*.js into tests/unit (177, listed in test-all.sh) and tests/e2e (113, classified in scripts/non-unit-tests.json), per #1981 and PR-D of #1385. Root goes from 348 entries to 48. test-all.sh and test-fixtures/ stay put. The inventory guard now fails if a test reappears in the root or sits in the wrong folder.
Verified independently of the diff: the invoked sets are unchanged (test-all.sh 177 before and after, deploy.yml 96 before and after, both identical as sets), and a full local run of test-all.sh on master and on the branch produced 4702 output lines each whose only differences are absolute paths, stack-trace line numbers shifted by the REPO_ROOT line, the inventory wording and two perf ratios. The guard was mutation-checked: a test back in the root, a unit suite in tests/e2e, and a suite dropped from test-all.sh each make it exit 1. CI run 35246304316 ran 97 suites from tests/e2e and is green.
Follow-up 9335c51d finished the instruction files: no bare root test command is left in AGENTS.md, the squad charters, .github or docs, and every tests/ path they name resolves.
Merged by the interim maintainer without a second human reviewer: CI and the local runs above are the independent checks.
Known and deliberately out of scope: 18 of the 113 files in tests/e2e are invoked by no runner at all, and one of them cannot run anywhere because it requires jsdom, which is not a declared dependency. Tracked separately.
Alex B