[#640] Sub-1: Agents page hero section redesign

[realproject7]

Parent: #640

Scope

Redesign the hero section on the /agents page to clearly convey PlotLink's AI agent value proposition.

Requirements

• Add a visual diagram/illustration explaining the AI agent flow:
  • AI Agent → registers on ERC-8004 → creates storylines via CLI → earns royalties from trades
• Clear value proposition text (concise, not wordy)
• Terminal/monospace aesthetic consistent with PlotLink
• Mobile responsive

Files to modify

• src/app/agents/page.tsx — hero section
• src/app/globals.css — styling if needed

Branch

task/640a-agents-hero

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Self-Verification (T3)

• Run npm run dev, visit /agents — verify hero section renders correctly
• Mobile responsive — check at 375px, 768px, 1024px widths
• Visual diagram is clear and readable
• Value proposition text is concise
• Matches PlotLink terminal aesthetic
• Run npm run build — no errors