Bump ruff line-length to 120 and reformat

Rejoins lines that only wrapped because they exceeded the old 88-char
limit; ruff check and the full test suite (725 passed) are unaffected.

tests/test_render.py

@@ -73,10 +73,7 @@ def test_render_router_diagnostics_and_edge_cases(tmp_path: Path):
             "x",
             {
                 "edges": [0, 1, 2],
-                "groups": {
-                    lbl: {"rollout": [1, 2], "reference": [2, 1]}
-                    for lbl in ("a", "b", "c", "d")
-                },
+                "groups": {lbl: {"rollout": [1, 2], "reference": [2, 1]} for lbl in ("a", "b", "c", "d")},
                 "log_y": True,
             },
         ),
@@ -126,9 +123,7 @@ def test_render_all_run_gallery_invokes_subprocess(tmp_path: Path, monkeypatch):
     for r in reduced:
         r.save(tmp_path / "reduced" / f"{r.id}.json")
     try:
-        render_mod.render_all(
-            tmp_path / "reduced", tmp_path / "plots", run_gallery=True
-        )
+        render_mod.render_all(tmp_path / "reduced", tmp_path / "plots", run_gallery=True)
     except RuntimeError as e:
         pytest.skip(f"LaTeX rendering unavailable: {e}")
 
@@ -145,9 +140,7 @@ def test_render_run_glues_condor_run_meta_into_render_all(tmp_path: Path, monkey
     (run_dir / "reduced").mkdir(parents=True)
 
     merge_calls = []
-    monkeypatch.setattr(
-        condor_mod, "merge_all", lambda rd: merge_calls.append(Path(rd))
-    )
+    monkeypatch.setattr(condor_mod, "merge_all", lambda rd: merge_calls.append(Path(rd)))
     meta = condor_mod.RunMeta(
         rollout="rollout.parquet",
         reference="reference.parquet",
@@ -157,9 +150,9 @@ def test_render_run_glues_condor_run_meta_into_render_all(tmp_path: Path, monkey
     )
     monkeypatch.setattr(condor_mod.RunMeta, "load", classmethod(lambda cls, p: meta))
 
-    Reduced(
-        "s", "species", "single_hist", "Single", "x", {"edges": [0, 1], "rollout": [1]}
-    ).save(run_dir / "reduced" / "s.json")
+    Reduced("s", "species", "single_hist", "Single", "x", {"edges": [0, 1], "rollout": [1]}).save(
+        run_dir / "reduced" / "s.json"
+    )
 
     try:
         pdfs = render_mod.render_run(run_dir)
@@ -363,9 +356,7 @@ def test_figure_params_old_shape_wgan_reports_noise_dim_not_steps():
 
 
 def test_plot_metadata_includes_note_and_run_meta_parameters():
-    r = Reduced(
-        "u", "router", "unavailable", "Unavailable", "x", {"note": "no router data"}
-    )
+    r = Reduced("u", "router", "unavailable", "Unavailable", "x", {"note": "no router data"})
     meta = render_mod._plot_metadata(r, {"title": "run-1", "checkpoint": "ckpt.pt"})
     assert meta["note"] == "no router data"
     assert meta["parameters"] == {"checkpoint": "ckpt.pt"}