docs: fix walrus-memory MCP sidebar and broken links

[jessiemongeon1]

Summary

• Update sidebarsWalrusMemory.js to replace stale mcp/quick-start and mcp/how-it-works entries with the actual per-client MCP doc pages (claude-code, claude-desktop, cursor, opencode, codex, antigravity, reference, changelog)
• Update KNOWN_PAGES in transform-walrus-memory-docs.js so internal links in fetched MCP docs are correctly rewritten with the /walrus-memory/ prefix

The upstream MemWal repo restructured its MCP docs, which broke the docs site build and caused links on live walrus-memory pages to redirect to non-existent pages.

Test plan

• pnpm build passes in docs/site/
• Verified no unrewritten internal links remain in walrus-memory-content/

🤖 Generated with Claude Code

[github-actions]

PR Preview Action v1.8.1
Preview removed because the pull request was closed.
2026-06-17 15:54 UTC

[github-actions]

📋 afdocs check results

URL: https://MystenLabs.github.io/walrus/pr-preview/pr-3473/

Running checks on mystenlabs.github.io/walrus/pr-preview/pr-3473/...

Agent-Friendly Docs Check: https://MystenLabs.github.io/walrus/pr-preview/pr-3473/
Timestamp: 6/17/2026, 3:44:46 PM

content-discoverability
  ✓ llms-txt-exists: llms.txt found at https://MystenLabs.github.io/walrus/pr-preview/pr-3473/llms.txt
  ✓ llms-txt-valid: llms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)
  ⚠ llms-txt-size: llms.txt is 54,726 characters (between 50,000 and 100,000; consider splitting)
      Learn more: https://agentdocsspec.com/spec/#llms-txt-size
  ○ llms-txt-links-resolve: llms.txt contains 160 links, but none are under /walrus/pr-preview/pr-3473
  ○ llms-txt-links-markdown: llms.txt contains 160 links, but none are under /walrus/pr-preview/pr-3473
  ✓ llms-txt-directive-html: llms.txt directive found in HTML of all 167 pages, near the top of content
  ✗ llms-txt-directive-md: Could not fetch markdown for any of 167 pages; 167 had no markdown version
      Learn more: https://agentdocsspec.com/spec/#llms-txt-directive-md

markdown-availability
  ✗ markdown-url-support: No pages support .md URLs (0/167 tested)
      Learn more: https://agentdocsspec.com/spec/#markdown-url-support
  ✗ content-negotiation: Server ignores Accept: text/markdown header (0/167 pages return markdown)
      Learn more: https://agentdocsspec.com/spec/#content-negotiation

page-size
  ✓ rendering-strategy: All 167 pages contain server-rendered content
  ○ page-size-markdown: Skipped: dependency check did not pass
  ✓ page-size-html: All 167 pages under 50K chars (median 41K HTML → 8K markdown (80% boilerplate))
  ✗ content-start-position: 24 of 167 pages have content starting past 50% (worst 71%)
      Learn more: https://agentdocsspec.com/spec/#content-start-position

content-structure
  ✓ tabbed-content-serialization: 53 tab group(s) across 30 of 167 pages; all serialize under 50K chars
  ✓ section-header-quality: 2 page(s) with tab headers checked; headers include variant context
  ✓ markdown-code-fence-validity: All 0 code fences properly closed across 1 pages

url-stability
  ✓ http-status-codes: All 167 pages return proper error codes for bad URLs
  ✓ redirect-behavior: No redirects detected across 167 pages

observability
  ✗ llms-txt-coverage: llms.txt covers 0/159 sitemap doc pages (0%); 159 missing
      Learn more: https://agentdocsspec.com/spec/#llms-txt-coverage
  ○ markdown-content-parity: Skipped: dependency check did not pass
  ✓ cache-header-hygiene: All 168 endpoints have appropriate cache headers

authentication
  ✓ auth-gate-detection: All 167 pages are publicly accessible
  ○ auth-alternative-access: All docs pages are publicly accessible; no alternative access paths needed

Summary
  12 passed, 1 warnings, 5 failed, 5 skipped (23 total)

Full spec: https://agentdocsspec.com/spec/