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/hooks/useSetups.ts

@@ -113,7 +113,10 @@ export function useUpdateItemClassification(setupId: number) {
 		mutationFn: ({
 			itemId,
 			classification,
-		}: { itemId: number; classification: string }) =>
+		}: {
+			itemId: number;
+			classification: string;
+		}) =>
 			apiPatch<{ success: boolean }>(
 				`/api/setups/${setupId}/items/${itemId}/classification`,
 				{ classification },