feat: enhance SEO data loading with generated fallback

- Implemented a mechanism to load SEO data from a generated file (seoData.generated.json) if available.
- Added error handling to fallback to the original SEO data file (seoData.json) if the generated file is not present.

frontend/package.json

@@ -10,7 +10,7 @@
     "preview": "vite preview",
     "lint": "eslint .",
     "test": "vitest run",
-    "seo:generate": "node scripts/generate-seo-assets.mjs"
+    "seo:generate": "node scripts/merge-keywords.mjs && node scripts/generate-seo-assets.mjs"
   },
   "dependencies": {
     "@microsoft/clarity": "^1.0.2",