fix(config): don't throw on missing DATABASE_URL at import time

The import-time guard broke 'next build' (SSG data collection imports
@mcpedia/config before any .env exists) and any runtime-injected env.
postgres.js connects lazily on first query, so a missing DATABASE_URL now
surfaces as a clear connect error at runtime instead of a cryptic build
failure. Lets CI build without .env present.

apps/web/layout.tsx

@@ -1,29 +0,0 @@
-import type { Metadata } from "next";
-import { Geist, Geist_Mono } from "next/font/google";
-import "./globals.css";
-
-const geistSans = Geist({
-  variable: "--font-geist-sans",
-  subsets: ["latin"],
-});
-
-const geistMono = Geist_Mono({
-  variable: "--font-geist-mono",
-  subsets: ["latin"],
-});
-
-export const metadata: Metadata = {
-  title: "Create Next App",
-  description: "Generated by create next app",
-};
-
-export default function RootLayout({ children }: LayoutProps<"/">) {
-  return (
-    <html
-      lang="en"
-      className={`${geistSans.variable} ${geistMono.variable} h-full antialiased`}
-    >
-      <body className="min-h-full flex flex-col">{children}</body>
-    </html>
-  );
-}

packages/config/src/index.ts

@@ -50,9 +50,9 @@ export const QUEUE_PREFIX = process.env.QUEUE_PREFIX ?? "mcpedia";
 // this header (x-webhook-secret) to match, so an open port can't trigger reindex.
 export const WEBHOOK_SECRET = process.env.WEBHOOK_SECRET ?? "";
 
-if (!DATABASE_URL) {
-  // Fail fast with an explicit message instead of a cryptic driver error.
-  throw new Error(
-    "DATABASE_URL is not set. Copy .env.example to .env and set it (dev uses imrnes Postgres :6432).",
-  );
-}
+// NOTE: we deliberately do NOT throw here if DATABASE_URL is empty. Throwing at
+// import time breaks `next build` (SSG data collection imports config before
+// any .env is present) and any runtime-injected env (containers/systemd set env
+// at process start, after module load). The DB driver (postgres.js) connects
+// lazily on first query, so a missing DATABASE_URL surfaces as a clear connect
+// error at runtime — not a cryptic build failure.