feat: add health checks, OG image generation, and R2 integration

- Implement health check system with caching and singleflight pattern
- Add OG image generation via Satori with R2 storage backend
- Configure Railway deployment with health check endpoint
- Add connection pooling and Unix socket support for Bun SSR
- Block external access to internal routes (/internal/*)

web/package.json

@@ -13,7 +13,8 @@
     "format": "prettier --write ."
   },
   "dependencies": {
-    "@fontsource-variable/inter": "^5.1.0",
+    "@ethercorps/sveltekit-og": "^4.2.1",
+    "@fontsource-variable/inter": "^5.2.8",
     "@fontsource/hanken-grotesk": "^5.1.0",
     "@fontsource/schibsted-grotesk": "^5.2.8",
     "@logtape/logtape": "^1.3.5",
@@ -23,6 +24,7 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.39.2",
+    "@fontsource/inter": "^5.2.8",
     "@iconify/json": "^2.2.424",
     "@sveltejs/kit": "^2.21.0",
     "@sveltejs/vite-plugin-svelte": "^6.2.1",
@@ -36,7 +38,7 @@
     "prettier": "^3.7.4",
     "prettier-plugin-svelte": "^3.4.1",
     "svelte": "^5.45.6",
-    "svelte-adapter-bun": "^1.0.1",
+    "svelte-adapter-bun": "npm:@xevion/svelte-adapter-bun@^1.0.1",
     "svelte-check": "^4.3.4",
     "tailwindcss": "^4.1.11",
     "typescript-eslint": "^8.51.0",