fix: resolve all lint errors — exclude generated dirs, auto-fix source

Exclude drizzle/ and .planning/ from Biome (generated files with
incompatible formatting). Auto-fix import ordering and formatting
in existing source files.

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

src/client/routes/index.tsx

@@ -1,10 +1,10 @@
 import { createFileRoute } from "@tanstack/react-router";
 import { DashboardCard } from "../components/DashboardCard";
+import { useCurrency } from "../hooks/useCurrency";
 import { useSetups } from "../hooks/useSetups";
 import { useThreads } from "../hooks/useThreads";
 import { useTotals } from "../hooks/useTotals";
 import { useWeightUnit } from "../hooks/useWeightUnit";
-import { useCurrency } from "../hooks/useCurrency";
 import { formatPrice, formatWeight } from "../lib/formatters";
 
 export const Route = createFileRoute("/")({
@@ -35,7 +35,10 @@ function DashboardPage() {
 							label: "Weight",
 							value: formatWeight(global?.totalWeight ?? null, unit),
 						},
-						{ label: "Cost", value: formatPrice(global?.totalCost ?? null, currency) },
+						{
+							label: "Cost",
+							value: formatPrice(global?.totalCost ?? null, currency),
+						},
 					]}
 					emptyText="Get started"
 				/>