Add /benchmarks page: LoCoMo & LongMemEval results vs. mem0

[jy7lsna]

Description

Adds a new /benchmarks page presenting Statewave's LoCoMo and LongMemEval results head-to-head against mem0 (cloud and OSS), run on mem0's own eval harness with gpt-4o as a shared answerer/judge across all three backends. The page includes an interactive scoreboard, methodology writeup, copy-pasteable reproduction steps per backend, an explicit scope section (what is and isn't claimed), a governance comparison table, and an FAQ. Wired into routing, nav, footer, and the SEO/sitemap route table so it's discoverable and indexable.

Related Issue

Closes #

Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 📚 Documentation update
• 🔧 Maintenance (refactoring, dependencies, CI, etc.)
• 🧪 Test improvement

Changes Made

• Add src/pages/BenchmarksPage.tsx: scoreboard (with axis zoom/full toggle and series isolation), methodology pipeline diagram, per-backend reproduce steps, scope/claims section, governance comparison matrix, and FAQ
• Wire /benchmarks into src/App.tsx (route), src/components/Navbar.tsx (nav link), src/components/Footer.tsx (footer link), and src/lib/seo-meta.ts (title/description/og:type/sitemap entry)
• Add --series-statewave / --series-mem0-cloud / --series-mem0-oss categorical chart color tokens to src/index.css for light and dark themes, validated for CVD contrast, plus a .section-glow--soft utility for sections carrying saturated chart hues
• Add an iconOnly variant to src/components/CodeCopyButton.tsx for dense terminal-panel headers

Testing

• Unit tests pass locally
• Integration tests pass locally
• Manual testing completed
• New tests added for new functionality

Test Commands Run

npm run typecheck   # clean
npm run lint        # clean
npm test             # 321 passed, 2 skipped (26 files)
npm run build        # client + SSR + server build; /benchmarks prerendered and present in sitemap.xml

Checklist

• My code follows the project's coding standards
• I have performed a self-review of my code
• I have commented my code where necessary
• I have updated documentation as needed
• My changes generate no new warnings or errors
• I have added tests that prove my fix/feature works
• All existing tests pass
• I have checked for breaking changes

Screenshots / Recordings

[vercel]

@jy7lsna is attempting to deploy a commit to the Statewave Team on Vercel.

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[smaramwbc]

Shipped 🎉 — this landed on main via #237 (squashed as 5d76012) together with #228, #235 and #239. The /benchmarks page is live with your numbers exactly as written — we verified every figure traces to statewave-memory-benchmarks before merging. Thanks for the careful, source-backed work; closing since the content is merged.