New `archipelago-openwrt` workspace crate provides SSH/UCI-based management
of OpenWrt routers, including automated TollGate installation and configuration
of a pay-as-you-go "archipelago" SSID backed by the local Cashu mint.
Exposes two RPC endpoints:
- `openwrt.scan` — discover OpenWrt routers on the LAN
- `openwrt.provision-tollgate` — install tollgate-module-basic-go, write UCI
config (TIP-01/TIP-02), and create isolated WiFi SSID + firewall zone
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
