Add benchmark results page to website

[Sripadkarne]

Issue #50

Summary

• New "Benchmark Results" page on the AgentOpt website documenting 200-sample brute force evaluations across 4 benchmarks and 9 Bedrock models
• Added to site navigation next to Examples

What's on the page

• Model pricing table — all 9 AWS Bedrock models with per-token costs
• Cross-benchmark summary — best combo, accuracy, and selector savings for GPQA, BFCL, HotpotQA, MathQA
• Per-benchmark sections with:
  • Model/combo result tables (top 15 + bottom 15 for 2-tuple benchmarks)
  • Selector comparison tables (7 algorithms, sorted by mean accuracy, 50-seed simulations)
  • Collapsible full 81-combo tables for HotpotQA and MathQA
• Key findings highlighted as callouts (e.g., HotpotQA "Capability as Liability" — Opus as planner bypasses the solver and scores worst at ~32%)

Changes

• docs/benchmark-results/index.md — new page
• mkdocs.yml — nav entry added

[Wenyueh]

Don't mention AWS bedrock

[Sripadkarne]

Removed it

[Wenyueh]

what's this symbol "???"

[Sripadkarne]

That's MkDocs syntax for a collapsible section!

It keeps the full 81 combo table hidden by default so the page isn't overwhelming, and users can click to expand it.

[Wenyueh]

ah nice!