Generate gcx Marketing Slide

Regenerate docs/bento_marketing_slide.html — a 1440x900 "bento box" marketing slide — so that every command shown is verified against the live binary and all stats are accurate.

Prerequisites

• Go toolchain available
• docs/bento_marketing_slide.html must exist

Workflow

Stage 1: Build & Reflect

Build a fresh gcx binary and extract the full command catalog and stats.

# 1. Build
go build -buildvcs=false -o bin/gcx ./cmd/gcx/