feat(openwrt): add archipelago-openwrt crate with TollGate provisioning

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>

core/Cargo.lock

@@ -99,6 +99,7 @@ version = "1.7.99-alpha"
 dependencies = [
  "anyhow",
  "archipelago-container",
+ "archipelago-openwrt",
  "archipelago-performance",
  "archipelago-security",
  "argon2",
@@ -180,6 +181,22 @@ dependencies = [
  "uuid",
 ]
 
+[[package]]
+name = "archipelago-openwrt"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "async-trait",
+ "reqwest 0.11.27",
+ "serde",
+ "serde_json",
+ "ssh2",
+ "thiserror 1.0.69",
+ "tokio",
+ "tokio-test",
+ "tracing",
+]
+
 [[package]]
 name = "archipelago-performance"
 version = "0.1.0"
@@ -2839,6 +2856,32 @@ dependencies = [
  "redox_syscall 0.7.3",
 ]
 
+[[package]]
+name = "libssh2-sys"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "220e4f05ad4a218192533b300327f5150e809b54c4ec83b5a1d91833601811b9"
+dependencies = [
+ "cc",
+ "libc",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "libz-sys"
+version = "1.1.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85bc9657773828b90eeb625adff10eeac83cc21bbfd8e23a03eaa8a33c9e28d9"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.11.0"
@@ -3580,6 +3623,18 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7c87def4c32ab89d880effc9e097653c8da5d6ef28e6b539d313baaacfbafcbe"
 
+[[package]]
+name = "openssl-sys"
+version = "0.9.117"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b47e7e6bb2c38cd930d25a23b40fa52e068c10e85f3e03a7f5ba5aaca5713695"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "papaya"
 version = "0.2.4"
@@ -3758,6 +3813,12 @@ dependencies = [
  "spki 0.8.0",
 ]
 
+[[package]]
+name = "pkg-config"
+version = "0.3.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19f132c84eca552bf34cab8ec81f1c1dcc229b811638f9d283dceabe58c5569e"
+
 [[package]]
 name = "plain"
 version = "0.2.3"
@@ -4988,6 +5049,18 @@ dependencies = [
  "der 0.8.0",
 ]
 
+[[package]]
+name = "ssh2"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f84d13b3b8a0d4e91a2629911e951db1bb8671512f5c09d7d4ba34500ba68c8"
+dependencies = [
+ "bitflags 2.13.0",
+ "libc",
+ "libssh2-sys",
+ "parking_lot 0.12.5",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.1"
@@ -5775,6 +5848,12 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba73ea9cf16a25df0c8caa16c51acb937d5712a8429db78a3ee29d5dcacd3a65"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "vergen"
 version = "9.1.0"