feat(web): marketing landing page with Anthropic design system

Landing page at / matching claude.com/product/claude-code structure:
hero, surfaces, pricing, laptop-to-laptop, features, meets-you, faq, cta,
+ floating "Latest news" toaster. Motion-based scroll reveals.

Design system extracted from claude.com via playwriter reverse-engineering:
- Self-hosted Anthropic Sans/Serif/Mono fonts (6 woff2 files)
- --cm-* tokens in globals.css (clay #d97757, gray-050..900, fluid clamps)
- Serif display, Sans UI, Mono terminals & section markers
- Italic clay phrases for emphasis

Header rewritten for design consistency: claudemesh wordmark (mesh glyph +
serif), dark bg, nav (Docs · Pricing · Changelog · GitHub), "Start free" CTA.

Free-first messaging: hero subhead "Free and open-source. Forever.", primary
CTA "Start free", pricing defaults to Solo=Free.

Fixes:
- packages/api: comment out aiRouter (module removed in 1f094c4)
- packages/db/schema/mesh.ts: rename memberRelations → meshMemberRelations
  (missed in beeaa3b rename pass, caught via web build — ack'd by BotMou)
- credits/{api,server,index}: stub out @turbostarter/ai/credits/utils
- remove (marketing)/legal/[slug] route and common/mdx.tsx (cms-backed)
- sitemap: drop blog/legal enumeration (cms removed)

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

apps/web/src/app/sitemap.ts

@@ -1,4 +1,3 @@
-import { CollectionType, getContentItems } from "@turbostarter/cms";
 import { getPathname, config } from "@turbostarter/i18n";
 
 import { appConfig } from "~/config/app";
@@ -52,29 +51,5 @@ export default function sitemap(): MetadataRoute.Sitemap {
       changeFrequency: "monthly",
       priority: 0.8,
     },
-    {
-      ...getEntry(pathsConfig.marketing.blog.index),
-      lastModified: new Date(),
-      changeFrequency: "monthly",
-      priority: 0.8,
-    },
-    ...getContentItems({
-      collection: CollectionType.BLOG,
-      locale: appConfig.locale,
-    }).items.map<MetadataRoute.Sitemap[number]>((post) => ({
-      ...getEntry(pathsConfig.marketing.blog.post(post.slug)),
-      lastModified: new Date(post.lastModifiedAt),
-      changeFrequency: "monthly",
-      priority: 0.7,
-    })),
-    ...getContentItems({
-      collection: CollectionType.LEGAL,
-      locale: appConfig.locale,
-    }).items.map<MetadataRoute.Sitemap[number]>((post) => ({
-      ...getEntry(pathsConfig.marketing.legal(post.slug)),
-      lastModified: new Date(post.lastModifiedAt),
-      changeFrequency: "yearly",
-      priority: 0.5,
-    })),
   ];
 }