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/vite.config.ts

@@ -2,6 +2,7 @@ import { sveltekit } from "@sveltejs/kit/vite";
 import tailwindcss from "@tailwindcss/vite";
 import { defineConfig } from "vite";
 import Icons from "unplugin-icons/vite";
+import { sveltekitOG } from "@ethercorps/sveltekit-og/plugin";
 import { jsonLogger } from "./vite-plugin-json-logger";
 
 export default defineConfig({
@@ -9,7 +10,9 @@ export default defineConfig({
     jsonLogger(),
     tailwindcss(),
     sveltekit(),
+    sveltekitOG(),
     Icons({ compiler: "svelte" }),
   ],
   clearScreen: false,
+  assetsInclude: ["**/*.wasm"],
 });