test(issue-17): test_o1_rebuttal and test_o2_race_free_lock run run_loop.sh under their own WORKSPACE_ROOT (review claude, grok)

Two modules still ran the checkout's run_loop.sh - which sources lib.sh
before it parses an option - with the process environment and no root of
their own: test_o2_race_free_lock's test_o2_12 (review claude; it was in the
sweep's list and missed in 8b47cc7) and test_o1_rebuttal's
test_v3_rebut_option_parsing_and_budget, whose calls pass no env (review
grok; outside the env-copy grep). Both now use own_workspace_root, and W1
runs one node of each: at 8b47cc7 W1 fails with the copy's .mam/shim/herdr.

A last pass over the test files that run lib.sh, run_loop.sh, the wrapper or a
skill script: every one is marked, uses mam_sandbox or pins WORKSPACE_ROOT,
or does not source lib.sh (b7 diff_collect, deploy, issue42, issue45 config,
issue5_phase0, local_mqtt).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HCGpJXhSZasJLU38ksDghe

tests/test_issue17_workspace_root_isolation.py

@@ -38,6 +38,8 @@ NODES = [
     "tests/test_orc_onboard.py::test_o12_onboard_add_uuid",
     "tests/test_workspace_scope.py::TestWorkspaceScope::test_derived_herdr_session_name",
     "tests/test_issue17_item4_decisions.py::test_c_cmd_wait",
+    "tests/test_o2_race_free_lock.py::test_o2_12_run_loop_exits_on_lock_failure",
+    "tests/test_o1_rebuttal.py::test_v3_rebut_option_parsing_and_budget",
 ]