fix: resolve all lint errors across source and test files

- Fix unused function parameters (prefix with _)
- Fix unused imports in test files
- Fix import ordering in test files
- Auto-fix formatting issues across 22 files

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

tests/routes/global-items.test.ts

@@ -1,8 +1,8 @@
 import { beforeEach, describe, expect, it } from "bun:test";
 import { Hono } from "hono";
 import {
-	globalItemTags,
 	globalItems,
+	globalItemTags,
 	items,
 	tags,
 } from "../../src/db/schema.ts";
@@ -102,9 +102,7 @@ describe("Global Item Routes", () => {
 				.insert(globalItemTags)
 				.values({ globalItemId: gi1.id, tagId: tag.id });
 
-			const res = await app.request(
-				"/api/global-items?tags=ultralight",
-			);
+			const res = await app.request("/api/global-items?tags=ultralight");
 			expect(res.status).toBe(200);
 
 			const body = await res.json();