chore: fix python style violations

Co-authored-by: OpenAI/GPT-5.6-Terra <vibecoder@antoineve.me>
Co-authored-by: OpenAI/GPT-5.6-Luna <vibecoder@antoineve.me>
Co-authored-by: MiniMax/MiniMax-M3 <vibecoder@antoineve.me>
Co-authored-by: DeepSeek/DeepSeek-v4-Flash <vibecoder@antoineve.me>

app/routes/dashboard.py

@@ -1,12 +1,14 @@
-from flask import Blueprint, render_template
 from datetime import date, timedelta
+
 import sqlalchemy as sa
+from flask import Blueprint, render_template
+
 from app import db
-from app.models import WorkEntry
-from app.business.time_calc import minutes_to_str, work_minutes_reference
-from app.business.travel_calc import compute_km_for_entry, compute_co2_grams
 from app.business.leave_calc import compute_leave_used, get_or_create_balance
-from app.config_loader import get_vehicles, get_journeys
+from app.business.time_calc import minutes_to_str, work_minutes_reference
+from app.business.travel_calc import compute_co2_grams, compute_km_for_entry
+from app.config_loader import get_journeys, get_vehicles
+from app.models import WorkEntry
 
 bp = Blueprint("dashboard", __name__)
 
@@ -45,9 +47,7 @@ def index():
     balance = get_or_create_balance(year)
     used = compute_leave_used(year)
 
-    today_entry = db.session.scalar(
-        sa.select(WorkEntry).where(WorkEntry.date == today)
-    )
+    today_entry = db.session.scalar(sa.select(WorkEntry).where(WorkEntry.date == today))
 
     return render_template(
         "dashboard.html",