Fix ruff lint violations

src/ccma/ui/asset_tab.py

@@ -5,7 +5,7 @@ from collections.abc import Callable
 from datetime import datetime
 from tkinter import messagebox, ttk
 
-from ccma.domain.models import ASSET_STATUS_LABELS, Asset, Event
+from ccma.domain.models import ASSET_STATUS_LABELS, Event
 from ccma.storage.repository import MemberRepository, RepositoryError
 from ccma.ui.dialogs import AssetClaimDialog, IntegrityWarningDialog
 from ccma.ui.messages import MessageAction, MessageBannerList, TabMessage
@@ -196,8 +196,16 @@ class AssetTab(ttk.Frame):
         ttk.Button(finance_actions, text="Verlustforderung", command=self._create_loss_claim).pack(
             side="left", padx=(0, 8)
         )
-        ttk.Button(finance_actions, text="Reparaturforderung", command=self._create_repair_claim).pack(side="left")
-        self.asset_claims = ttk.Treeview(finance_tab, columns=("title", "due", "amount", "member"), show="headings")
+        ttk.Button(
+            finance_actions,
+            text="Reparaturforderung",
+            command=self._create_repair_claim,
+        ).pack(side="left")
+        self.asset_claims = ttk.Treeview(
+            finance_tab,
+            columns=("title", "due", "amount", "member"),
+            show="headings",
+        )
         for key, title, width in (
             ("title", "Forderung", 240),
             ("due", "Fällig", 110),
@@ -429,7 +437,14 @@ class AssetTab(ttk.Frame):
             claim_type="asset_repair",
         )
 
-    def _open_claim_dialog(self, *, preset_title: str, preset_amount: str, preset_description: str, claim_type: str) -> None:
+    def _open_claim_dialog(
+        self,
+        *,
+        preset_title: str,
+        preset_amount: str,
+        preset_description: str,
+        claim_type: str,
+    ) -> None:
         member_id = self.asset.current_holder_member_id
         if not member_id:
             messagebox.showerror(