feat(gui): make desktop setup flow real and testable

Add a GUI-first setup gate and runtime state API so desktop onboarding is safe, iterative, and works with isolated fresh-mode installs. Scaffold and wire the desktop shell/runtime pieces so this branch runs end-to-end without disturbing existing user installs.

apps/gui/scripts/dev-shell.mjs

@@ -0,0 +1,156 @@
+import { spawn, spawnSync } from "node:child_process";
+import { createServer } from "node:net";
+import { dirname, resolve } from "node:path";
+import { setTimeout as delay } from "node:timers/promises";
+import { fileURLToPath } from "node:url";
+
+const here = dirname(fileURLToPath(import.meta.url));
+const repoRoot = resolve(here, "../../..");
+const python = process.env.HERMES_PYTHON || "python";
+let port = process.env.HERMES_GUI_PORT || "9120";
+let url = `http://127.0.0.1:${port}`;
+
+let dashboard = null;
+
+function stop() {
+  if (dashboard && !dashboard.killed) dashboard.kill();
+}
+
+process.on("SIGINT", () => {
+  stop();
+  process.exit(130);
+});
+process.on("SIGTERM", () => {
+  stop();
+  process.exit(143);
+});
+process.on("exit", stop);
+
+async function waitForHealth() {
+  for (let i = 0; i < 120; i += 1) {
+    if (await isHealthy()) return true;
+    await delay(500);
+  }
+  return false;
+}
+
+async function isHealthy() {
+  try {
+    const res = await fetch(`${url}/api/health`, {
+      signal: AbortSignal.timeout(1000),
+    });
+    const data = await res.json();
+    return res.ok && data.status === "ok";
+  } catch {
+    return false;
+  }
+}
+
+function canBind(candidate) {
+  return new Promise((resolveBind) => {
+    const server = createServer();
+    server.once("error", () => resolveBind(false));
+    server.listen(Number(candidate), "127.0.0.1", () => {
+      server.close(() => resolveBind(true));
+    });
+  });
+}
+
+async function choosePort() {
+  if (process.env.HERMES_GUI_PORT) return;
+
+  let candidate = Number(port);
+  for (let i = 0; i < 20; i += 1) {
+    if (await canBind(candidate)) {
+      port = String(candidate);
+      url = `http://127.0.0.1:${port}`;
+      return;
+    }
+    candidate += 1;
+  }
+}
+
+function startDashboard() {
+  dashboard = spawn(
+    python,
+    [
+      "-m",
+      "hermes_cli.main",
+      "dashboard",
+      "--gui",
+      "--no-open",
+      "--host",
+      "127.0.0.1",
+      "--port",
+      port,
+    ],
+    {
+      cwd: repoRoot,
+      env: {
+        ...process.env,
+        HERMES_GUI: "1",
+      },
+      stdio: "inherit",
+    },
+  );
+
+  dashboard.on("exit", (code) => {
+    process.exit(code ?? 0);
+  });
+}
+
+function run(command, args) {
+  return (
+    spawnSync(command, args, {
+      shell: process.platform === "win32",
+      stdio: "ignore",
+    }).status === 0
+  );
+}
+
+function openGuiWindow() {
+  if (process.platform === "win32") {
+    return (
+      run("cmd.exe", ["/C", "start", "", "chrome", `--app=${url}`]) ||
+      run("cmd.exe", ["/C", "start", "", "msedge", `--app=${url}`]) ||
+      run("cmd.exe", ["/C", "start", "", url])
+    );
+  }
+
+  if (process.env.WSL_DISTRO_NAME) {
+    return (
+      run("cmd.exe", ["/C", "start", "", "chrome", `--app=${url}`]) ||
+      run("cmd.exe", ["/C", "start", "", "msedge", `--app=${url}`]) ||
+      run("cmd.exe", ["/C", "start", "", url])
+    );
+  }
+
+  if (process.platform === "darwin") {
+    return (
+      run("open", ["-na", "Google Chrome", "--args", `--app=${url}`]) ||
+      run("open", [url])
+    );
+  }
+
+  return (
+    run("google-chrome", [`--app=${url}`]) ||
+    run("chromium", [`--app=${url}`]) ||
+    run("xdg-open", [url])
+  );
+}
+
+if (await isHealthy()) {
+  console.log(`Hermes GUI already running -> ${url}`);
+  openGuiWindow();
+  process.exit(0);
+}
+
+await choosePort();
+startDashboard();
+
+if (await waitForHealth()) {
+  console.log(`Hermes GUI -> ${url}`);
+  openGuiWindow();
+} else {
+  console.error(`Hermes GUI did not become healthy at ${url}`);
+}

apps/gui/scripts/start-dashboard.mjs

@@ -0,0 +1,95 @@
+import { spawn } from "node:child_process";
+import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const here = dirname(fileURLToPath(import.meta.url));
+const repoRoot = resolve(here, "../../..");
+const python = process.env.HERMES_PYTHON || "python";
+const port = process.env.HERMES_GUI_PORT || "9120";
+const url = `http://127.0.0.1:${port}`;
+
+async function isHealthy() {
+  try {
+    const res = await fetch(`${url}/api/health`, {
+      signal: AbortSignal.timeout(1000),
+    });
+    const data = await res.json();
+    return res.ok && data.status === "ok";
+  } catch {
+    return false;
+  }
+}
+
+function wslRepoRoot() {
+  const normalized = repoRoot.replaceAll("\\", "/");
+  const parts = normalized.split("/");
+  const host = parts[2]?.toLowerCase();
+  if (process.platform !== "win32") return null;
+  if (host !== "wsl$" && host !== "wsl.localhost") return null;
+  const distro = parts[3];
+  const path = `/${parts.slice(4).join("/")}`;
+  return distro && path !== "/" ? { distro, path } : null;
+}
+
+function spawnDashboard() {
+  const wsl = wslRepoRoot();
+  if (wsl) {
+    return spawn(
+      "wsl.exe",
+      [
+        "-d",
+        wsl.distro,
+        "--cd",
+        wsl.path,
+        "env",
+        "HERMES_GUI=1",
+        process.env.HERMES_WSL_PYTHON || "python",
+        "-m",
+        "hermes_cli.main",
+        "dashboard",
+        "--gui",
+        "--no-open",
+        "--host",
+        "127.0.0.1",
+        "--port",
+        port,
+      ],
+      { stdio: "inherit" },
+    );
+  }
+
+  return spawn(
+    python,
+    [
+      "-m",
+      "hermes_cli.main",
+      "dashboard",
+      "--gui",
+      "--no-open",
+      "--host",
+      "127.0.0.1",
+      "--port",
+      port,
+    ],
+    {
+      cwd: repoRoot,
+      env: {
+        ...process.env,
+        HERMES_GUI: "1",
+      },
+      stdio: "inherit",
+    },
+  );
+}
+
+if (await isHealthy()) {
+  console.log(`Hermes GUI already running -> ${url}`);
+  process.exit(0);
+}
+
+const child = spawnDashboard();
+
+child.on("exit", (code, signal) => {
+  if (signal) process.kill(process.pid, signal);
+  process.exit(code ?? 0);
+});

apps/gui/scripts/tauri.mjs

@@ -0,0 +1,90 @@
+import { spawnSync } from "node:child_process";
+import { existsSync } from "node:fs";
+import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const here = dirname(fileURLToPath(import.meta.url));
+const appRoot = resolve(here, "..");
+const bin = process.platform === "win32" ? "tauri.cmd" : "tauri";
+const localTauri = resolve(appRoot, "node_modules", ".bin", bin);
+const args = process.argv.slice(2);
+
+function isWsl() {
+  return process.platform === "linux" && !!process.env.WSL_DISTRO_NAME;
+}
+
+function quotePs(value) {
+  return `'${value.replaceAll("'", "''")}'`;
+}
+
+function dispatchToWindows() {
+  const pathResult = spawnSync("wslpath", ["-w", appRoot], {
+    encoding: "utf8",
+  });
+  const windowsPath = pathResult.stdout.trim();
+  if (!windowsPath) return false;
+
+  const command = [
+    "$ErrorActionPreference = 'Stop'",
+    "Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass -Force",
+    "if (-not (Get-Command npm -ErrorAction SilentlyContinue)) {",
+    '  Write-Error "Windows npm was not found. Install Windows Node.js first: winget install OpenJS.NodeJS.LTS"',
+    "}",
+    "if (-not (Get-Command rustc -ErrorAction SilentlyContinue)) {",
+    '  Write-Error "Windows Rust was not found. Install Rust first: winget install Rustlang.Rustup"',
+    "}",
+    `Set-Location -LiteralPath ${quotePs(windowsPath)}`,
+    "& npm run dev:tauri",
+  ].join("; ");
+  const result = spawnSync(
+    "powershell.exe",
+    ["-NoProfile", "-ExecutionPolicy", "Bypass", "-Command", command],
+    { stdio: "inherit" },
+  );
+  process.exit(result.status ?? 1);
+}
+
+function run(command, commandArgs, { exit = true } = {}) {
+  if (process.platform === "win32") {
+    const psCommand = [
+      "$ErrorActionPreference = 'Stop'",
+      "Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass -Force",
+      `Set-Location -LiteralPath ${quotePs(appRoot)}`,
+      `& ${quotePs(command)} ${commandArgs.map(quotePs).join(" ")}`,
+    ].join("; ");
+    const result = spawnSync(
+      "powershell.exe",
+      ["-NoProfile", "-ExecutionPolicy", "Bypass", "-Command", psCommand],
+      { stdio: "inherit" },
+    );
+    if (result.error && result.error.code === "ENOENT") return false;
+    if (exit) process.exit(result.status ?? 1);
+    return result.status === 0;
+  }
+
+  const result = spawnSync(command, commandArgs, {
+    cwd: appRoot,
+    env: process.env,
+    stdio: "inherit",
+  });
+
+  if (result.error && result.error.code === "ENOENT") return false;
+  if (exit) process.exit(result.status ?? 1);
+  return result.status === 0;
+}
+
+if (isWsl() && process.env.HERMES_GUI_TAURI_WSL !== "1") {
+  console.log("Launching native Windows Tauri from WSL...");
+  dispatchToWindows();
+  console.error(
+    "Could not hand off to Windows PowerShell. Run this from Windows PowerShell instead:",
+  );
+  console.error("  cd \\\\wsl$\\Ubuntu\\home\\bb\\hermes-agent\\apps\\gui");
+  console.error("  npm run dev:tauri");
+  process.exit(1);
+}
+
+if (existsSync(localTauri)) run(localTauri, args);
+if (run("tauri", args, { exit: false })) process.exit(0);
+if (run("cargo", ["tauri", ...args], { exit: false })) process.exit(0);
+run("npx", ["--yes", "@tauri-apps/cli@latest", ...args]);