Swap the generic Open WebUI frontend for the purpose-built
hermes-webui (nesquena) with full CLI parity:
- 3-panel layout: sessions, chat, workspace file browser
- Native session, cron, skills, memory, profile management
- Themes (dark/light/slate/solarized/monokai/nord/oled)
- Mobile responsive
- Sidecar container sharing the hermes-agent PVC
- Exposed via Tailscale on port 8787 (plain HTTP)
Access: http://hermes-webui.tail14a963.ts.net:8787
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