chore: auto-fix Biome formatting and configure lint rules

Run biome check --write --unsafe to fix tabs, import ordering, and
non-null assertions across entire codebase. Disable a11y rules not
applicable to this single-user app. Exclude auto-generated routeTree.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/client/hooks/useSettings.ts

@@ -1,37 +1,37 @@
-import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { apiGet, apiPut } from "../lib/api";
 
 interface Setting {
-  key: string;
-  value: string;
+	key: string;
+	value: string;
 }
 
 export function useSetting(key: string) {
-  return useQuery({
-    queryKey: ["settings", key],
-    queryFn: async () => {
-      try {
-        const result = await apiGet<Setting>(`/api/settings/${key}`);
-        return result.value;
-      } catch (err: any) {
-        if (err?.status === 404) return null;
-        throw err;
-      }
-    },
-  });
+	return useQuery({
+		queryKey: ["settings", key],
+		queryFn: async () => {
+			try {
+				const result = await apiGet<Setting>(`/api/settings/${key}`);
+				return result.value;
+			} catch (err: any) {
+				if (err?.status === 404) return null;
+				throw err;
+			}
+		},
+	});
 }
 
 export function useUpdateSetting() {
-  const queryClient = useQueryClient();
-  return useMutation({
-    mutationFn: ({ key, value }: { key: string; value: string }) =>
-      apiPut<Setting>(`/api/settings/${key}`, { value }),
-    onSuccess: (_data, variables) => {
-      queryClient.invalidateQueries({ queryKey: ["settings", variables.key] });
-    },
-  });
+	const queryClient = useQueryClient();
+	return useMutation({
+		mutationFn: ({ key, value }: { key: string; value: string }) =>
+			apiPut<Setting>(`/api/settings/${key}`, { value }),
+		onSuccess: (_data, variables) => {
+			queryClient.invalidateQueries({ queryKey: ["settings", variables.key] });
+		},
+	});
 }
 
 export function useOnboardingComplete() {
-  return useSetting("onboardingComplete");
+	return useSetting("onboardingComplete");
 }