chore(fmt): apply ruff format and remove unused import in conftest

ace_pipeline.py

@@ -3,6 +3,7 @@
 Mirrors z-image-studio's `models.py` pattern. M0 only implements device
 detection — the pipeline class itself is filled in at M1.
 """
+
 from __future__ import annotations
 
 

app.py

@@ -4,6 +4,7 @@ On HF Spaces, `_bootstrap()` runs once on import to mirror the read-only
 preload cache into a writable tree. On Mac/Linux locally, it's a no-op.
 The backend singleton is lazy-loaded on first generation request.
 """
+
 from __future__ import annotations
 
 import os

tests/conftest.py

@@ -6,7 +6,6 @@ to GPU smoke tests with `pytest -m gpu`.
 
 from __future__ import annotations
 
-import os
 import sys
 from pathlib import Path
 

tests/test_ace_pipeline.py

@@ -1,4 +1,5 @@
 """L1 tests for device autodetect — no torch needed if we mock importlib."""
+
 from __future__ import annotations
 
 import ace_pipeline as ap

tests/test_theme.py

@@ -1,4 +1,5 @@
 """L1 theme assertions — palette tokens, CSS presence."""
+
 from __future__ import annotations
 
 import theme
@@ -9,7 +10,16 @@ def test_palette_tokens_are_brutalist_mono():
     assert theme.INK == "#E5E5E5"
     assert theme.PRIMARY == "#FFFFFF"
     # No color accent — that's the whole point of Brutalist Mono
-    for v in (theme.BG, theme.SURFACE, theme.SURFACE_STRONG, theme.BORDER, theme.BORDER_STRONG, theme.INK, theme.INK_MUTED, theme.PRIMARY):
+    for v in (
+        theme.BG,
+        theme.SURFACE,
+        theme.SURFACE_STRONG,
+        theme.BORDER,
+        theme.BORDER_STRONG,
+        theme.INK,
+        theme.INK_MUTED,
+        theme.PRIMARY,
+    ):
         assert v.startswith("#")
         assert len(v) == 7  # all hex, no rgba
 
@@ -17,12 +27,13 @@ def test_palette_tokens_are_brutalist_mono():
 def test_css_contains_responsive_breakpoints():
     css = theme.CSS
     assert "@media" in css
-    assert "1024px" in css   # tablet breakpoint
-    assert "640px" in css    # mobile breakpoint
+    assert "1024px" in css  # tablet breakpoint
+    assert "640px" in css  # mobile breakpoint
 
 
 def test_build_theme_returns_gradio_theme():
     import gradio as gr
+
     t = theme.build_theme()
     # gr.themes.Base is the parent class
     assert isinstance(t, gr.themes.Base)

theme.py

@@ -3,6 +3,7 @@
 Palette tokens are the source of truth; CSS pulls from them. The audio
 waveform is the only optionally-colored element (rendered white in v1).
 """
+
 from __future__ import annotations
 
 import gradio as gr
@@ -18,9 +19,7 @@ INK_MUTED = "#6B6B6B"
 PRIMARY = "#FFFFFF"
 ERROR_BG = "#1A1A1A"
 RADIUS = "6px"
-FONT_STACK = (
-    '"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif'
-)
+FONT_STACK = '"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif'
 
 
 def build_theme() -> gr.themes.Base: