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/src-tauri/.gitignore

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+/target/

apps/gui/src-tauri/Cargo.toml

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+[package]
+name = "hermes-gui"
+version = "0.0.0"
+description = "Hermes GUI shell"
+edition = "2021"
+
+[lib]
+name = "hermes_gui_lib"
+crate-type = ["staticlib", "cdylib", "rlib"]
+
+[build-dependencies]
+tauri-build = { version = "2", features = [] }
+
+[dependencies]
+tauri = { version = "2", features = ["tray-icon"] }
+tauri-plugin-notification = "2"
+tauri-plugin-opener = "2"

apps/gui/src-tauri/build.rs

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+fn main() {
+    tauri_build::build();
+}

apps/gui/src-tauri/capabilities/default.json

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+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "default",
+  "description": "Default Hermes GUI permissions",
+  "windows": ["main"],
+  "permissions": ["core:default", "notification:default", "opener:default"]
+}

apps/gui/src-tauri/gen/schemas/capabilities.json

@@ -0,0 +1 @@
+{"default":{"identifier":"default","description":"Default Hermes GUI permissions","local":true,"windows":["main"],"permissions":["core:default","notification:default","opener:default"]}}

apps/gui/src-tauri/icons/icon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
+  <rect width="100" height="100" rx="18" fill="#071313"/>
+  <text x="50" y="70" text-anchor="middle" font-size="68" fill="#f0e6d2">⚕</text>
+</svg>

apps/gui/src-tauri/sidecars/.gitkeep

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+

apps/gui/src-tauri/src/lib.rs

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+use std::{
+    io::{Read, Write},
+    net::{TcpListener, TcpStream},
+    process::{Child, Command, Stdio},
+    sync::Mutex,
+    time::{Duration, Instant},
+};
+
+use tauri::{
+    image::Image,
+    menu::{Menu, MenuItem, PredefinedMenuItem},
+    tray::{MouseButton, MouseButtonState, TrayIconBuilder, TrayIconEvent},
+    App, AppHandle, Manager, WebviewWindow,
+};
+
+const GUI_HOST: &str = "127.0.0.1";
+const DEFAULT_GUI_PORT: u16 = 9120;
+const MIN_SPLASH_MS: u64 = 0;
+const SPLASH_URL: &str = "data:text/html,%3C!doctype%20html%3E%3Cmeta%20charset%3Dutf-8%3E%3Cstyle%3Ebody%7Bmargin%3A0%3Bheight%3A100vh%3Bdisplay%3Agrid%3Bplace-items%3Acenter%3Bbackground%3A%23071313%3Bcolor%3A%23f0e6d2%3Bfont%3A14px%20monospace%3Bletter-spacing%3A.08em%3Btext-transform%3Auppercase%7D%3C%2Fstyle%3E%3Cbody%3EStarting%20Hermes%E2%80%A6%3C%2Fbody%3E";
+
+struct GuiState {
+    child: Mutex<Option<Child>>,
+    port: Mutex<u16>,
+}
+
+fn gui_url(port: u16) -> String {
+    format!("http://{GUI_HOST}:{port}")
+}
+
+fn check_health(port: u16) -> bool {
+    let Ok(mut stream) = TcpStream::connect_timeout(
+        &format!("{GUI_HOST}:{port}").parse().unwrap(),
+        Duration::from_secs(1),
+    ) else {
+        return false;
+    };
+
+    let _ = stream.set_read_timeout(Some(Duration::from_secs(1)));
+    let request =
+        format!("GET /api/health HTTP/1.1\r\nHost: {GUI_HOST}:{port}\r\nConnection: close\r\n\r\n");
+
+    if stream.write_all(request.as_bytes()).is_err() {
+        return false;
+    }
+
+    let mut response = String::new();
+    let _ = stream.read_to_string(&mut response);
+    response.contains("200 OK")
+        && response.contains("\"status\":\"ok\"")
+        && response.contains("\"mode\":\"gui\"")
+}
+
+fn can_bind(port: u16) -> bool {
+    TcpListener::bind((GUI_HOST, port)).is_ok()
+}
+
+fn base_port() -> u16 {
+    std::env::var("HERMES_GUI_PORT")
+        .ok()
+        .and_then(|raw| raw.parse().ok())
+        .unwrap_or(DEFAULT_GUI_PORT)
+}
+
+fn select_port() -> u16 {
+    let start = base_port();
+    for port in start..start.saturating_add(20) {
+        if check_health(port) || can_bind(port) {
+            return port;
+        }
+    }
+    start
+}
+
+fn repo_root() -> std::path::PathBuf {
+    std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("../../..")
+        .canonicalize()
+        .unwrap_or_else(|_| std::path::PathBuf::from("."))
+}
+
+fn runtime_dir() -> Option<std::path::PathBuf> {
+    std::env::var_os("HERMES_GUI_RUNTIME_DIR").map(std::path::PathBuf::from)
+}
+
+fn runtime_python(runtime: &std::path::Path) -> std::path::PathBuf {
+    if cfg!(target_os = "windows") {
+        runtime.join("venv").join("Scripts").join("python.exe")
+    } else {
+        runtime.join("venv").join("bin").join("python")
+    }
+}
+
+fn wsl_path(root: &std::path::Path) -> Option<(String, String)> {
+    let raw = root.to_string_lossy().replace('\\', "/");
+    let parts: Vec<&str> = raw.split('/').collect();
+    let host = parts.get(2)?.to_ascii_lowercase();
+    if host != "wsl$" && host != "wsl.localhost" {
+        return None;
+    }
+    let distro = parts.get(3)?.to_string();
+    let path = format!("/{}", parts.get(4..)?.join("/"));
+    Some((distro, path))
+}
+
+fn start_dashboard(port: u16) -> std::io::Result<Child> {
+    if let Some(runtime) = runtime_dir() {
+        let python = runtime_python(&runtime);
+        let web_dist = runtime.join("web_dist");
+        let tui_dir = runtime.join("ui-tui");
+        let port = port.to_string();
+        return Command::new(python)
+            .args([
+                "-m",
+                "hermes_cli.main",
+                "dashboard",
+                "--gui",
+                "--no-open",
+                "--host",
+                GUI_HOST,
+                "--port",
+                &port,
+            ])
+            .env("HERMES_GUI", "1")
+            .env("HERMES_GUI_PORT", &port)
+            .env("HERMES_WEB_DIST", web_dist)
+            .env("HERMES_TUI_DIR", tui_dir)
+            .envs(
+                std::env::vars()
+                    .filter(|(key, _)| matches!(key.as_str(), "HERMES_HOME" | "HERMES_GUI_FRESH")),
+            )
+            .stdin(Stdio::null())
+            .stdout(Stdio::null())
+            .stderr(Stdio::null())
+            .spawn();
+    }
+
+    let root = repo_root();
+    let port = port.to_string();
+
+    if let Some((distro, path)) = wsl_path(&root) {
+        let port_env = format!("HERMES_GUI_PORT={port}");
+        let mut env_args = vec!["HERMES_GUI=1".to_string(), port_env];
+        if let Ok(home) = std::env::var("HERMES_HOME") {
+            env_args.push(format!("HERMES_HOME={home}"));
+        }
+        if let Ok(fresh) = std::env::var("HERMES_GUI_FRESH") {
+            env_args.push(format!("HERMES_GUI_FRESH={fresh}"));
+        }
+        let mut args = vec![
+            "-d".to_string(),
+            distro,
+            "--cd".to_string(),
+            path,
+            "env".to_string(),
+        ];
+        args.extend(env_args);
+        args.extend([
+            "python".to_string(),
+            "-m".to_string(),
+            "hermes_cli.main".to_string(),
+            "dashboard".to_string(),
+            "--gui".to_string(),
+            "--no-open".to_string(),
+            "--host".to_string(),
+            GUI_HOST.to_string(),
+            "--port".to_string(),
+            port.clone(),
+        ]);
+        return Command::new("wsl.exe")
+            .args(args)
+            .stdin(Stdio::null())
+            .stdout(Stdio::null())
+            .stderr(Stdio::null())
+            .spawn();
+    }
+
+    Command::new("python")
+        .args([
+            "-m",
+            "hermes_cli.main",
+            "dashboard",
+            "--gui",
+            "--no-open",
+            "--host",
+            GUI_HOST,
+            "--port",
+            &port,
+        ])
+        .current_dir(root)
+        .env("HERMES_GUI", "1")
+        .env("HERMES_GUI_PORT", &port)
+        .envs(
+            std::env::vars()
+                .filter(|(key, _)| matches!(key.as_str(), "HERMES_HOME" | "HERMES_GUI_FRESH")),
+        )
+        .stdin(Stdio::null())
+        .stdout(Stdio::null())
+        .stderr(Stdio::null())
+        .spawn()
+}
+
+fn stop_owned_dashboard(state: &GuiState) {
+    let Some(mut child) = state.child.lock().expect("gui child lock poisoned").take() else {
+        return;
+    };
+    let _ = child.kill();
+    let _ = child.wait();
+}
+
+fn current_port(state: &GuiState) -> u16 {
+    *state.port.lock().expect("gui port lock poisoned")
+}
+
+fn ensure_dashboard(state: &GuiState) -> Result<(), String> {
+    let current = current_port(state);
+    if check_health(current) {
+        return Ok(());
+    }
+
+    let port = select_port();
+    *state.port.lock().expect("gui port lock poisoned") = port;
+
+    if check_health(port) {
+        return Ok(());
+    }
+
+    let child = start_dashboard(port).map_err(|err| {
+        format!(
+            "Could not auto-start Hermes dashboard ({err}). Start it manually with: hermes dashboard --gui --no-open --port {port}"
+        )
+    })?;
+    *state.child.lock().expect("gui child lock poisoned") = Some(child);
+    Ok(())
+}
+
+fn navigate_when_ready(window: WebviewWindow, port: u16) {
+    std::thread::spawn(move || {
+        let started = Instant::now();
+        while started.elapsed() < Duration::from_secs(60) {
+            if check_health(port) {
+                let min_splash = std::env::var("HERMES_GUI_MIN_SPLASH_MS")
+                    .ok()
+                    .and_then(|raw| raw.parse::<u64>().ok())
+                    .unwrap_or(MIN_SPLASH_MS);
+                let elapsed = started.elapsed();
+                if elapsed < Duration::from_millis(min_splash) {
+                    std::thread::sleep(Duration::from_millis(min_splash) - elapsed);
+                }
+                if let Ok(url) = tauri::Url::parse(&gui_url(port)) {
+                    let _ = window.navigate(url);
+                    let _ = window.show();
+                    let _ = window.set_focus();
+                }
+                return;
+            }
+            std::thread::sleep(Duration::from_millis(500));
+        }
+    });
+}
+
+fn show_main_window(app: &AppHandle) {
+    if let Some(window) = app.get_webview_window("main") {
+        let _ = window.show();
+        let _ = window.set_focus();
+    }
+}
+
+fn open_browser(port: u16) {
+    let url = gui_url(port);
+
+    #[cfg(target_os = "windows")]
+    let _ = Command::new("cmd")
+        .args(["/C", "start", "", &url])
+        .stdin(Stdio::null())
+        .stdout(Stdio::null())
+        .stderr(Stdio::null())
+        .spawn();
+
+    #[cfg(target_os = "macos")]
+    let _ = Command::new("open").arg(&url).spawn();
+
+    #[cfg(all(unix, not(target_os = "macos")))]
+    let _ = Command::new("xdg-open").arg(&url).spawn();
+}
+
+fn tray_icon() -> Image<'static> {
+    let width = 32;
+    let height = 32;
+    let mut rgba = Vec::with_capacity(width * height * 4);
+
+    for y in 0..height {
+        for x in 0..width {
+            let mark = (14..=17).contains(&x) && (5..=26).contains(&y)
+                || (8..=23).contains(&x) && (13..=16).contains(&y)
+                || (10..=21).contains(&x) && (y == 5 || y == 26);
+            if mark {
+                rgba.extend_from_slice(&[0xF0, 0xE6, 0xD2, 0xFF]);
+            } else {
+                rgba.extend_from_slice(&[0x07, 0x13, 0x13, 0xFF]);
+            }
+        }
+    }
+
+    Image::new_owned(rgba, width as u32, height as u32)
+}
+
+fn restart_runtime(app: &AppHandle) -> Result<(), String> {
+    let state = app.state::<GuiState>();
+    stop_owned_dashboard(&state);
+    ensure_dashboard(&state)?;
+
+    if let Some(window) = app.get_webview_window("main") {
+        if let Ok(url) = tauri::Url::parse(SPLASH_URL) {
+            let _ = window.navigate(url);
+        }
+        let port = current_port(&state);
+        navigate_when_ready(window, port);
+    }
+
+    Ok(())
+}
+
+fn setup_tray(app: &App) -> tauri::Result<()> {
+    let open_item = MenuItem::with_id(app, "open", "Open Hermes", true, None::<&str>)?;
+    let browser_item = MenuItem::with_id(app, "browser", "Open in Browser", true, None::<&str>)?;
+    let restart_item =
+        MenuItem::with_id(app, "restart", "Restart Hermes Runtime", true, None::<&str>)?;
+    let status_item = MenuItem::with_id(app, "status", "Local runtime", false, None::<&str>)?;
+    let separator = PredefinedMenuItem::separator(app)?;
+    let separator2 = PredefinedMenuItem::separator(app)?;
+    let quit_item = MenuItem::with_id(app, "quit", "Quit Hermes", true, None::<&str>)?;
+
+    let menu = Menu::with_items(
+        app,
+        &[
+            &open_item,
+            &browser_item,
+            &restart_item,
+            &separator,
+            &status_item,
+            &separator2,
+            &quit_item,
+        ],
+    )?;
+
+    let icon = tray_icon();
+    let _tray = TrayIconBuilder::new()
+        .icon(icon)
+        .menu(&menu)
+        .tooltip("Hermes")
+        .on_menu_event(|app, event| match event.id.as_ref() {
+            "open" => show_main_window(app),
+            "browser" => {
+                let state = app.state::<GuiState>();
+                open_browser(current_port(&state));
+            }
+            "restart" => {
+                if let Err(err) = restart_runtime(app) {
+                    eprintln!("Failed to restart Hermes runtime: {err}");
+                }
+            }
+            "quit" => {
+                let state = app.state::<GuiState>();
+                stop_owned_dashboard(&state);
+                app.exit(0);
+            }
+            _ => {}
+        })
+        .on_tray_icon_event(|tray, event| {
+            if let TrayIconEvent::Click {
+                button: MouseButton::Left,
+                button_state: MouseButtonState::Up,
+                ..
+            } = event
+            {
+                show_main_window(&tray.app_handle());
+            }
+        })
+        .build(app)?;
+
+    Ok(())
+}
+
+#[tauri::command]
+fn runtime_running(app: AppHandle) -> bool {
+    let state = app.state::<GuiState>();
+    check_health(current_port(&state))
+}
+
+#[tauri::command]
+fn restart_runtime_command(app: AppHandle) -> Result<(), String> {
+    restart_runtime(&app)
+}
+
+pub fn run() {
+    tauri::Builder::default()
+        .plugin(tauri_plugin_notification::init())
+        .plugin(tauri_plugin_opener::init())
+        .manage(GuiState {
+            child: Mutex::new(None),
+            port: Mutex::new(base_port()),
+        })
+        .invoke_handler(tauri::generate_handler![
+            runtime_running,
+            restart_runtime_command
+        ])
+        .setup(|app| {
+            setup_tray(app)?;
+
+            if let Some(window) = app.get_webview_window("main") {
+                if let Ok(url) = tauri::Url::parse(SPLASH_URL) {
+                    let _ = window.navigate(url);
+                }
+
+                let state = app.state::<GuiState>();
+                if let Err(err) = ensure_dashboard(&state) {
+                    eprintln!("{err}");
+                }
+
+                let port = current_port(&state);
+                navigate_when_ready(window, port);
+            }
+            Ok(())
+        })
+        .on_window_event(|window, event| {
+            if let tauri::WindowEvent::CloseRequested { api, .. } = event {
+                api.prevent_close();
+                let _ = window.hide();
+            }
+        })
+        .run(tauri::generate_context!())
+        .expect("failed to run Hermes GUI");
+}

apps/gui/src-tauri/src/main.rs

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+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+fn main() {
+    hermes_gui_lib::run();
+}

apps/gui/src-tauri/tauri.conf.json

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+{
+  "$schema": "https://schema.tauri.app/config/2",
+  "productName": "Hermes",
+  "version": "0.0.0",
+  "identifier": "ai.nous.hermes.gui",
+  "build": {
+    "beforeDevCommand": "",
+    "beforeBuildCommand": "",
+    "devUrl": "http://127.0.0.1:9120",
+    "frontendDist": "../dist"
+  },
+  "app": {
+    "withGlobalTauri": true,
+    "windows": [
+      {
+        "label": "main",
+        "title": "Hermes",
+        "width": 1400,
+        "height": 900,
+        "minWidth": 900,
+        "minHeight": 600,
+        "resizable": true,
+        "center": true
+      }
+    ],
+    "security": {
+      "csp": "default-src 'self' http://127.0.0.1:* http://localhost:*; connect-src 'self' http://127.0.0.1:* http://localhost:* ws://127.0.0.1:* ws://localhost:*; img-src 'self' data: blob: http://127.0.0.1:* http://localhost:*; style-src 'self' 'unsafe-inline' http://127.0.0.1:* http://localhost:*; script-src 'self' 'unsafe-inline' 'unsafe-eval' http://127.0.0.1:* http://localhost:*"
+    }
+  },
+  "bundle": {
+    "active": true,
+    "icon": ["icons/32x32.png", "icons/icon.ico", "icons/icon.svg"],
+    "targets": ["nsis", "dmg", "app"],
+    "resources": {
+      "sidecars": "sidecars/"
+    }
+  }
+}