build(deps): migrate to @cloudflare/vitest-plugin 1.x

@cloudflare/vitest-pool-workers was renamed to @cloudflare/vitest-plugin
for its v1 release; the old name stopped at 0.22.0 with pinned vulnerable
wrangler and miniflare versions. Vitest stays on 4: the plugin's peer
range is still ^4.1.0.

CLAUDE.md

@@ -13,7 +13,7 @@ Telegram bot that forwards [status.claude.com](https://status.claude.com/) (Atla
 - `npx wrangler deploy --dry-run` — Verify build without deploying
 - `node scripts/setup-bot.js` — One-time: register bot commands + set Telegram webhook (interactive prompts)
 
-- `npm test` — Run tests (vitest + @cloudflare/vitest-pool-workers, runs in Workers runtime)
+- `npm test` — Run tests (vitest + @cloudflare/vitest-plugin, runs in Workers runtime)
 - `npm run test:watch` — Run tests in watch mode
 
 No linter configured.

package.json

@@ -26,7 +26,7 @@
     "hono": "^4.12.30"
   },
   "devDependencies": {
-    "@cloudflare/vitest-pool-workers": "^0.17.0",
+    "@cloudflare/vitest-plugin": "^1.3.6",
     "vite": "^8.1.2",
     "vitest": "^4.1.9",
     "wrangler": "^4.112.0"

vitest.config.js

@@ -1,5 +1,5 @@
 import { defineConfig } from "vitest/config";
-import { cloudflarePool, cloudflareTest } from "@cloudflare/vitest-pool-workers";
+import { cloudflarePool, cloudflareTest } from "@cloudflare/vitest-plugin";
 
 export default defineConfig({
   plugins: [
@@ -8,7 +8,7 @@ export default defineConfig({
       miniflare: {
         // Override remote KV with local-only for tests
         kvNamespaces: ["claude_status"],
-        // Pre-add flags so vitest-pool-workers doesn't emit debug noise
+        // Pre-add flags so the Workers Vitest plugin doesn't emit debug noise
         compatibilityFlags: [
           "enable_nodejs_tty_module",
           "enable_nodejs_fs_module",