refactor: replace sveltekit-og with native Satori implementation

- Remove @ethercorps/sveltekit-og and bits-ui dependencies
- Implement direct Satori + Resvg rendering pipeline
- Add OgImage.svelte component for template generation
- Create /internal/ogp preview page for development
- Load fonts from node_modules via fs for production compatibility
- Add 2s startup delay before OG image regeneration

web/package.json

@@ -13,13 +13,15 @@
     "format": "prettier --write ."
   },
   "dependencies": {
-    "@ethercorps/sveltekit-og": "^4.2.1",
     "@fontsource-variable/inter": "^5.2.8",
+    "@fontsource-variable/schibsted-grotesk": "^5.2.8",
     "@fontsource/hanken-grotesk": "^5.1.0",
     "@fontsource/schibsted-grotesk": "^5.2.8",
     "@logtape/logtape": "^1.3.5",
-    "bits-ui": "^2.8.2",
+    "@resvg/resvg-js": "^2.6.2",
+    "@xevion/satori-html": "^0.4.1",
     "clsx": "^2.1.1",
+    "satori": "^0.18.3",
     "tailwind-merge": "^3.3.1"
   },
   "devDependencies": {