Live review test: no CI grace in its CI-less repository

The CI wait made a head with no checks wait ci_grace_s (2 min), so the
live test's single round reviewed nothing. Its fresh repository has no
CI: the test sets the grace to 0.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J5Utyfzw7gF7UhjRDEtjTk

tests/integration/test_review_live.py

@@ -56,7 +56,8 @@ def test_a_ready_pr_gets_one_comment_review(
                 "operators": ["nisse-testing-operator"],
             },
             "repositories": [repo.name],
-            "tuning": {"review": {"max_turns": 25}},
+            # The fresh repository has no CI: review at once, no grace.
+            "tuning": {"review": {"max_turns": 25, "ci_grace_s": 0}},
         }
         config = ReviewConfig.from_tree(tree, {})
         # make_repo gives the agent write access: the reviewer refuses that.