feat(web): og:image, /pricing + FAQ schema, llms-full.txt, GitHub nav

More AEO audit fixes (the content-independent quick wins):

- Generated 1200x630 OpenGraph/Twitter card (app/opengraph-image.tsx);
  drop the SVG fallback and use summary_large_image.
- /pricing page with question-style headings and FAQPage JSON-LD; clarifies
  the spec/tooling is free and implementation is $250/week.
- /llms-full.txt — full markdown of the curated docs concatenated for
  large-context RAG ingestion.
- GitHub link added to both navs (SPA rail + SiteShell) and Pricing nav item;
  /pricing added to the sitemap.

Verified in a running build: og image renders as PNG and is referenced in
head; /pricing serves FAQ + schema; /llms-full.txt concatenates docs.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps/logicsrc-web/src/app/sitemap.ts

@@ -21,6 +21,7 @@ const STATIC_ROUTES: Array<{
   { path: "/agentbyte", changeFrequency: "weekly", priority: 0.8 },
   { path: "/credential-sharing", changeFrequency: "weekly", priority: 0.8 },
   { path: "/hire-us", changeFrequency: "weekly", priority: 0.8 },
+  { path: "/pricing", changeFrequency: "monthly", priority: 0.7 },
   { path: "/blog", changeFrequency: "daily", priority: 0.7 },
   { path: "/about", changeFrequency: "monthly", priority: 0.6 },
   { path: "/terms", changeFrequency: "monthly", priority: 0.4 },