fix(web): fully remove payload runtime from production build

Remove ALL Payload imports, withPayload wrapper, and (payload)
routes. Blog index + changelog are now static data arrays.
Blog post at /blog/peer-messaging-claude-code is static TSX.

Payload CMS stays as a dev dependency for future local admin
but has zero presence in the production build.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/next.config.ts

@@ -1,8 +1,5 @@
 import type { NextConfig } from "next";
 
-// eslint-disable-next-line @typescript-eslint/no-require-imports
-const { withPayload } = require("@payloadcms/next/withPayload");
-
 import env from "./env.config";
 
 const INTERNAL_PACKAGES = [
@@ -124,4 +121,4 @@ const withBundleAnalyzer = require("@next/bundle-analyzer")({
   enabled: env.ANALYZE,
 });
 
-export default withPayload(withBundleAnalyzer(config));
+export default withBundleAnalyzer(config);