Editor Benchmarks Results Page Rewrite

Goal

Replace the current editor-benchmarks homepage with a real table-first results surface modeled on js-framework-benchmark, but implemented in the existing Next + shadcn app.

Scope

• reuse the js-framework-benchmark results structure/pattern
• keep shadcn / Next implementation
• erase the old benchmark dashboard shell
• use current local Slate/Plate data
• keep non-result surfaces secondary

Constraints

• main page must answer "who wins on which lanes"
• charts are secondary
• controls should feel like the JS benchmark:
  • editor selection
  • benchmark selection
  • display mode
  • duration slice mode
  • compare-with baseline
• correctness / issue gating should be visible

Plan

1. Inspect current editor-benchmarks page/data/components.
2. Inspect js-framework-benchmark result components that define the table and controls.
3. Replace the old page shell with:
   • compact header
   • sticky control bar
   • dense result table
   • issue / behavior gate rows
   • secondary sections for method/templates
4. Build and browser-check.

Verification

• npm run build:web in /Users/zbeyens/git/editor-benchmarks
• browser verification on http://localhost:3023