Fix CI: apply ruff lint + format on src/ and app/

- Replace if/else with ternary (SIM108) in render_score_card.
- Use contextlib.suppress(Exception) instead of try/except/pass
  (SIM105) in Visualize / Compare page re-theming helpers.
- Rename ambiguous `l` to `lens_feasible` in TSP.score_summary (E741).
- Sort imports in src/qqa/problems/__init__.py (I001).
- Apply `ruff format` across 7 files that drifted.

No behavioural changes; pytest 51 passed / 1 skipped.

Author: Yuma-Ichikawa

app/_common.py

@@ -54,7 +54,7 @@ def loss_fn(s):
     "border": "#e4e1d6",
     "text": "#0f172a",
     "muted": "#64748b",
-    "accent": "#0f766e",   # deep teal
+    "accent": "#0f766e",  # deep teal
     "accent2": "#be5a3c",  # warm terracotta
     "grid": "#e5e7eb",
     "palette": ["#0f766e", "#be5a3c", "#1e3a8a", "#b45309", "#6d28d9", "#047857"],
@@ -112,15 +112,16 @@ def plotly_layout(theme: str | None = None, **overrides) -> dict:
         "template": "plotly_white" if (theme or get_theme()) == "light" else "plotly_dark",
         "paper_bgcolor": "rgba(0,0,0,0)",
         "plot_bgcolor": "rgba(0,0,0,0)",
-        "font": {"family": "Inter, -apple-system, sans-serif", "size": 13,
-                 "color": p["text"]},
-        "title_font": {"family": "'Source Serif 4', Georgia, serif",
-                       "size": 17, "color": p["text"]},
+        "font": {"family": "Inter, -apple-system, sans-serif", "size": 13, "color": p["text"]},
+        "title_font": {
+            "family": "'Source Serif 4', Georgia, serif",
+            "size": 17,
+            "color": p["text"],
+        },
         "colorway": p["palette"],
         "xaxis": {"gridcolor": p["grid"], "linecolor": p["border"], "zerolinecolor": p["grid"]},
         "yaxis": {"gridcolor": p["grid"], "linecolor": p["border"], "zerolinecolor": p["grid"]},
-        "legend": {"bgcolor": "rgba(0,0,0,0)", "bordercolor": p["border"],
-                   "borderwidth": 0.5},
+        "legend": {"bgcolor": "rgba(0,0,0,0)", "bordercolor": p["border"], "borderwidth": 0.5},
         "margin": {"l": 50, "r": 20, "t": 48, "b": 46},
     }
     base.update(overrides)
@@ -137,13 +138,13 @@ def apply_theme() -> None:
         <style>
         @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&display=swap');
         :root {{
-            --qqa-bg: {p['bg']};
-            --qqa-card: {p['bg_card']};
-            --qqa-border: {p['border']};
-            --qqa-text: {p['text']};
-            --qqa-muted: {p['muted']};
-            --qqa-accent: {p['accent']};
-            --qqa-accent2: {p['accent2']};
+            --qqa-bg: {p["bg"]};
+            --qqa-card: {p["bg_card"]};
+            --qqa-border: {p["border"]};
+            --qqa-text: {p["text"]};
+            --qqa-muted: {p["muted"]};
+            --qqa-accent: {p["accent"]};
+            --qqa-accent2: {p["accent2"]};
         }}
         html, body, [class*="css"] {{
             font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
@@ -156,7 +157,7 @@ def apply_theme() -> None:
             color: var(--qqa-text);
         }}
         section[data-testid="stSidebar"] {{
-            background: {p['bg_sidebar']};
+            background: {p["bg_sidebar"]};
             border-right: 1px solid var(--qqa-border);
         }}
         h1, h2, h3, h4 {{
@@ -286,13 +287,13 @@ def apply_theme() -> None:
         <style>
         @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&display=swap');
         :root {{
-            --qqa-bg: {p['bg']};
-            --qqa-card: {p['bg_card']};
-            --qqa-border: {p['border']};
-            --qqa-text: {p['text']};
-            --qqa-muted: {p['muted']};
-            --qqa-accent: {p['accent']};
-            --qqa-accent2: {p['accent2']};
+            --qqa-bg: {p["bg"]};
+            --qqa-card: {p["bg_card"]};
+            --qqa-border: {p["border"]};
+            --qqa-text: {p["text"]};
+            --qqa-muted: {p["muted"]};
+            --qqa-accent: {p["accent"]};
+            --qqa-accent2: {p["accent2"]};
         }}
         html, body, [class*="css"] {{ font-family: 'Inter', sans-serif; }}
         .stApp {{
@@ -303,7 +304,7 @@ def apply_theme() -> None:
             color: var(--qqa-text);
         }}
         section[data-testid="stSidebar"] {{
-            background: {p['bg_sidebar']};
+            background: {p["bg_sidebar"]};
             backdrop-filter: blur(14px);
             border-right: 1px solid var(--qqa-border);
         }}
@@ -408,15 +409,10 @@ def render_score_card(score: dict, raw_loss: float | None = None) -> None:
         else '<span class="qqa-badge warn">infeasible</span>'
     )
     value = score.get("value", "-")
-    if isinstance(value, float):
-        value_s = f"{value:.4g}"
-    else:
-        value_s = str(value)
+    value_s = f"{value:.4g}" if isinstance(value, float) else str(value)
     unit = score.get("unit", "")
     unit_html = f'<span class="unit">{unit}</span>' if unit else ""
-    raw_html = (
-        f'<div class="raw">raw loss = {raw_loss:.4g}</div>' if raw_loss is not None else ""
-    )
+    raw_html = f'<div class="raw">raw loss = {raw_loss:.4g}</div>' if raw_loss is not None else ""
     value_cls = "value" if feas else "value infeasible"
     st.markdown(
         f'<div class="qqa-score">'
@@ -584,7 +580,7 @@ def _graph_preview(g: nx.Graph, title: str) -> None:
         yaxis={"visible": False},
         height=380,
     )
-    st.plotly_chart(fig, width='stretch')
+    st.plotly_chart(fig, width="stretch")
 
 
 def _coupling_preview(J: np.ndarray, title: str) -> None:
@@ -595,7 +591,7 @@ def _coupling_preview(J: np.ndarray, title: str) -> None:
         plot_bgcolor="rgba(0,0,0,0)",
         height=400,
     )
-    st.plotly_chart(fig, width='stretch')
+    st.plotly_chart(fig, width="stretch")
 
 
 def preview_problem(problem: Any, cfg: dict) -> None:
@@ -619,7 +615,7 @@ def preview_problem(problem: Any, cfg: dict) -> None:
             plot_bgcolor="rgba(0,0,0,0)",
             height=400,
         )
-        st.plotly_chart(fig, width='stretch')
+        st.plotly_chart(fig, width="stretch")
         return
     if kind == "custom":
         import torch

app/pages/1_Solve.py

@@ -148,7 +148,7 @@ def on_epoch_end(self, state: CallbackState) -> None:
                 legend={"x": 0.01, "y": 0.02, "bgcolor": "rgba(255,255,255,0.6)"},
             )
         )
-        self.chart_holder.plotly_chart(fig, width='stretch')
+        self.chart_holder.plotly_chart(fig, width="stretch")
 
         # --- Population heatmap: replicas sorted by best-so-far --------
         pop = np.stack(self.pop, axis=1)  # (sol_size, T)
@@ -186,13 +186,15 @@ def on_epoch_end(self, state: CallbackState) -> None:
                 xaxis_title="Epoch",
                 yaxis_title="Replica (sorted by best-so-far)",
                 yaxis2={
-                    "overlaying": "y", "side": "right", "showgrid": False,
+                    "overlaying": "y",
+                    "side": "right",
+                    "showgrid": False,
                     "title": "best loss",
                 },
                 legend={"x": 0.01, "y": 0.99, "bgcolor": "rgba(255,255,255,0.6)"},
             )
         )
-        self.pop_holder.plotly_chart(pop_fig, width='stretch')
+        self.pop_holder.plotly_chart(pop_fig, width="stretch")
 
         # --- Diversity curve: std across replicas vs epoch --------------
         div_fig = go.Figure()
@@ -216,7 +218,7 @@ def on_epoch_end(self, state: CallbackState) -> None:
                 showlegend=False,
             )
         )
-        self.diversity_holder.plotly_chart(div_fig, width='stretch')
+        self.diversity_holder.plotly_chart(div_fig, width="stretch")
 
 
 run = st.button("▶  Run QQA", type="primary")
@@ -236,8 +238,13 @@ def on_epoch_end(self, state: CallbackState) -> None:
     diversity_holder = st.empty()
 
     cb = StreamlitCallback(
-        progress, metrics, chart, pop_holder, diversity_holder,
-        sol_size=sol_size, update_every=update_every,
+        progress,
+        metrics,
+        chart,
+        pop_holder,
+        diversity_holder,
+        sol_size=sol_size,
+        update_every=update_every,
     )
     pop_tracker = PopulationTracker(stride=max(1, update_every), record_x=True)
 
@@ -262,8 +269,10 @@ def on_epoch_end(self, state: CallbackState) -> None:
 
     # Clear the "still running" progress bar and display the polished result.
     progress.empty()
-    raw = result.best_obj if isinstance(result.best_obj, float) else float(
-        __import__("numpy").asarray(result.best_obj).mean()
+    raw = (
+        result.best_obj
+        if isinstance(result.best_obj, float)
+        else float(__import__("numpy").asarray(result.best_obj).mean())
     )
     with score_holder.container():
         render_score_card(result.score, raw_loss=raw)

app/pages/2_Visualize.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import contextlib
 import sys
 from pathlib import Path
 
@@ -58,22 +59,21 @@
     ]
 )
 
+
 def _retheme(fig):
     """Reskin a Plotly figure produced by ``viz`` to the current theme."""
-    try:
+    with contextlib.suppress(Exception):
         fig.update_layout(**plotly_layout())
-    except Exception:
-        pass
     return fig
 
 
 with tab_hist:
     fig = viz.plot_history(result, backend="plotly", show=False)
-    st.plotly_chart(_retheme(fig), width='stretch')
+    st.plotly_chart(_retheme(fig), width="stretch")
 
 with tab_best:
     fig = viz.plot_best_trajectory(result, backend="plotly", show=False)
-    st.plotly_chart(_retheme(fig), width='stretch')
+    st.plotly_chart(_retheme(fig), width="stretch")
 
 with tab_sched:
     if result.history and "bg" in result.history:
@@ -97,12 +97,12 @@ def _retheme(fig):
                 height=400,
             )
         )
-        st.plotly_chart(fig, width='stretch')
+        st.plotly_chart(fig, width="stretch")
 
 with tab_sol:
     try:
         fig = viz.plot_solution_heatmap(result, problem=problem, backend="plotly", show=False)
-        st.plotly_chart(_retheme(fig), width='stretch')
+        st.plotly_chart(_retheme(fig), width="stretch")
     except Exception as e:
         st.info(f"No solution heatmap available: {e}")
 
@@ -111,7 +111,7 @@ def _retheme(fig):
         st.info("No population snapshots recorded for this run.")
     else:
         fig = viz.plot_population_evolution(pop_tracker, backend="plotly", show=False)
-        st.plotly_chart(_retheme(fig), width='stretch')
+        st.plotly_chart(_retheme(fig), width="stretch")
         st.caption(
             "Each row is one of the `sol_size` replicas (sorted by final loss). "
             "Colour encodes per-replica loss."
@@ -123,7 +123,7 @@ def _retheme(fig):
     else:
         try:
             fig = viz.plot_population_embedding(pop_tracker, backend="plotly", show=False)
-            st.plotly_chart(_retheme(fig), width='stretch')
+            st.plotly_chart(_retheme(fig), width="stretch")
             st.caption(
                 "2D PCA projection of the entire continuous-variable population over time. "
                 "Each faint grey line is one replica's trajectory; markers are coloured by epoch."
@@ -153,16 +153,20 @@ def _retheme(fig):
             base = -k * 1.15
             fig.add_trace(
                 go.Scatter(
-                    x=centres, y=base + dens, mode="lines",
+                    x=centres,
+                    y=base + dens,
+                    mode="lines",
                     line={"color": p["palette"][k % len(p["palette"])], "width": 1.2},
                     fill="tonexty" if k > 0 else None,
                     name=f"epoch {epochs[i]}",
                     showlegend=False,
                 )
             )
             fig.add_annotation(
-                x=centres.min(), y=base + 0.05,
-                text=f"ep {epochs[i]}", showarrow=False,
+                x=centres.min(),
+                y=base + 0.05,
+                text=f"ep {epochs[i]}",
+                showarrow=False,
                 font={"size": 10, "color": p["muted"]},
                 xanchor="left",
             )
@@ -173,11 +177,16 @@ def _retheme(fig):
                 yaxis_title="",
                 height=max(420, 28 * len(idx)),
                 showlegend=False,
-                yaxis={"showticklabels": False, "showgrid": False, "zeroline": False,
-                       "gridcolor": palette()["grid"], "linecolor": palette()["border"]},
+                yaxis={
+                    "showticklabels": False,
+                    "showgrid": False,
+                    "zeroline": False,
+                    "gridcolor": palette()["grid"],
+                    "linecolor": palette()["border"],
+                },
             )
         )
-        st.plotly_chart(fig, width='stretch')
+        st.plotly_chart(fig, width="stretch")
         st.caption("Stacked loss distributions. Early rows (top) → late rows (bottom).")
 
 with tab_fate:
@@ -216,7 +225,7 @@ def _retheme(fig):
                 height=460,
             )
         )
-        st.plotly_chart(fig, width='stretch')
+        st.plotly_chart(fig, width="stretch")
         st.caption(
             "Top-ranked replicas are drawn in the primary accent, lower-ranked "
             "ones fade toward the secondary accent."

app/pages/3_Compare.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import contextlib
 import itertools
 import sys
 from pathlib import Path
@@ -21,12 +22,11 @@
 
 
 def _retheme(fig):
-    try:
+    with contextlib.suppress(Exception):
         fig.update_layout(**plotly_layout())
-    except Exception:
-        pass
     return fig
 
+
 st.set_page_config(page_title="Compare — QQA", page_icon="⚛️", layout="wide")
 theme_toggle_in_sidebar()
 apply_theme()
@@ -87,18 +87,18 @@ def _retheme(fig):
 
     st.success("Sweep complete.")
     st.subheader("Results table")
-    st.dataframe(rows, width='stretch')
+    st.dataframe(rows, width="stretch")
 
     try:
         import pandas as pd
 
         df = pd.DataFrame(rows)
         fig = viz.plot_parallel_coordinates(df, objective="best_obj", backend="plotly", show=False)
         st.subheader("Parallel coordinates")
-        st.plotly_chart(_retheme(fig), width='stretch')
+        st.plotly_chart(_retheme(fig), width="stretch")
     except Exception as e:
         st.info(f"Parallel-coordinates unavailable: {e}")
 
     st.subheader("Run comparison")
     fig2 = viz.plot_run_comparison(results, labels=labels, backend="plotly", show=False)
-    st.plotly_chart(_retheme(fig2), width='stretch')
+    st.plotly_chart(_retheme(fig2), width="stretch")

src/qqa/annealing.py

@@ -246,8 +246,13 @@ def anneal(
         try:
             score = problem.score_summary(best_sol)
         except Exception as exc:  # noqa: BLE001 - surface but never abort
-            score = {"label": "loss", "value": float(best_obj), "unit": "",
-                     "feasible": True, "extra": {"error": str(exc)}}
+            score = {
+                "label": "loss",
+                "value": float(best_obj),
+                "unit": "",
+                "feasible": True,
+                "extra": {"error": str(exc)},
+            }
 
     return AnnealResult(
         best_sol=best_sol,