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_setup_cache.py

@@ -14,9 +14,7 @@ from giant.data.transforms import Normalizer
 
 def _touch_parquet(path, n=1):
     path.parent.mkdir(parents=True, exist_ok=True)
-    pd.DataFrame(
-        {"pdg": [11] * n, "material": ["G4_AIR"] * n, "process": ["eIoni"] * n}
-    ).to_parquet(path)
+    pd.DataFrame({"pdg": [11] * n, "material": ["G4_AIR"] * n, "process": ["eIoni"] * n}).to_parquet(path)
     return path
 
 
@@ -29,9 +27,7 @@ def _normalizer(width=3):
 
 def _entry(n_train_steps=100, sample=None):
     sample = np.array([1.0, 2.0, 3.0], dtype=np.float32) if sample is None else sample
-    return NormalizerEntry(
-        _normalizer(), _normalizer(), _normalizer(2), n_train_steps, sample
-    )
+    return NormalizerEntry(_normalizer(), _normalizer(), _normalizer(2), n_train_steps, sample)
 
 
 # ── sidecar_path ─────────────────────────────────────────────────────────
@@ -39,9 +35,7 @@ def _entry(n_train_steps=100, sample=None):
 
 def test_sidecar_path_single_file(tmp_path):
     f = tmp_path / "shard.parquet"
-    assert (
-        setup_cache.sidecar_path(f) == tmp_path / "shard.parquet.giant_train_cache.json"
-    )
+    assert setup_cache.sidecar_path(f) == tmp_path / "shard.parquet.giant_train_cache.json"
 
 
 def test_sidecar_path_directory(tmp_path):
@@ -51,10 +45,7 @@ def test_sidecar_path_directory(tmp_path):
 
 def test_sidecar_path_manifest(tmp_path):
     m = tmp_path / "pools" / "full.manifest"
-    assert (
-        setup_cache.sidecar_path(m)
-        == tmp_path / "pools" / "full.manifest.giant_train_cache.json"
-    )
+    assert setup_cache.sidecar_path(m) == tmp_path / "pools" / "full.manifest.giant_train_cache.json"
 
 
 # ── fingerprint_files ────────────────────────────────────────────────────