feat(models,landing): add OpenRouter free models and a free-models article (#60)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

packages/landing/package.json

@@ -10,7 +10,8 @@
     "preview": "vite preview",
     "typecheck": "tsc --noEmit -p tsconfig.json",
     "test": "vitest run --passWithNoTests",
-    "shots": "node scripts/capture-shots.mjs"
+    "shots": "node scripts/capture-shots.mjs",
+    "blog-shots": "node scripts/capture-blog-shots.mjs"
   },
   "dependencies": {
     "react": "^19.1.0",