chore(18-03): apply 18-01 schema foundation as dependency baseline

src/db/seed.ts

@@ -1,14 +1,4 @@
-import { db } from "./index.ts";
-import { categories } from "./schema.ts";
-
 export function seedDefaults() {
-	const existing = db.select().from(categories).all();
-	if (existing.length === 0) {
-		db.insert(categories)
-			.values({
-				name: "Uncategorized",
-				icon: "package",
-			})
-			.run();
-	}
+	// Per-user default categories are created on first login (Phase 16)
+	// The getOrCreateUncategorized helper in category.service.ts handles this lazily.
 }