chore: cleanup project

- Remove nodemailer (unused dependency)
- Remove .opencode folder (skills moved to Hermes)
- Remove .genkit folder (cache, not needed)
- Remove AGENTS.md (info moved to skills)
- Remove YANDEX_MAIL_SETUP.md (outdated)
- Add typecheck script to package.json
- Update bun.lockb

frontend/package.json

@@ -9,7 +9,8 @@
     "dev": "astro dev",
     "build": "astro build",
     "preview": "astro preview",
-    "astro": "astro"
+    "astro": "astro",
+    "typecheck": "astro check"
   },
   "dependencies": {
     "@astrojs/mdx": "5.0.4",
@@ -20,14 +21,14 @@
     "astro": "6.2.1",
     "astro-icon": "^1.1.5",
     "marked": "^18.0.0",
-    "nodemailer": "^6.9.14",
+
     "pocketbase": "^0.21.0",
     "solid-js": "^1.9.12",
     "tailwindcss": "^4.2.2"
   },
   "devDependencies": {
     "@astrojs/check": "0.9.9",
-    "@types/nodemailer": "^6.4.16",
+
     "terser": "^5.46.1",
     "typescript": "^6.0.2"
   }