feat(app): redirect to next workspace after archiving

docs/ELECTRON_MIGRATION.md

@@ -0,0 +1,192 @@
+# Electron Migration
+
+## Why switch
+
+Paseo Desktop is a webview that loads an Expo web build plus a Node daemon that manages AI coding agents. Tauri is designed for apps that need a thin native wrapper — it assumes your backend logic lives in Rust. Paseo's backend is entirely Node/TypeScript. The result is that we're reimplementing Electron's built-in Node bundling inside Tauri's resource system.
+
+### Pain points with Tauri today
+
+**Managed runtime bundling is the #1 source of complexity.** `build-managed-runtime.mjs` (590 lines) downloads a Node distribution, packs three workspace tarballs, installs them with the bundled npm, separately installs sherpa-onnx platform packages, prunes ONNX/node-pty/ripgrep binaries per platform, and writes a runtime manifest. This exists solely because Tauri doesn't ship Node.
+
+**Linux is fragile.** We wrote a custom AppImage Wayland patch (`maybePatchLinuxAddonRunpath` in sherpa-onnx-node-loader, plus AppImage patching scripts) because Tauri's Linux webview has Wayland issues. Electron handles Wayland/X11 transparently via Chromium's `--ozone-platform-hint=auto`.
+
+**Native notification callbacks required Objective-C.** We wrote `paseo_notifications.m` (UNUserNotificationCenter delegate bridge) and compiled it into the Tauri build just to get notification click callbacks on macOS. Linux and Windows notification callbacks are unimplemented. Electron's `Notification` API provides click/reply/action callbacks cross-platform with zero native code.
+
+**Windows is undertested.** The Rust code has `#[cfg(windows)]` blocks for named pipes, PowerShell `Expand-Archive`, `CREATE_NO_WINDOW` flags, NSIS installer hooks — all written speculatively with limited testing. Electron's cross-platform abstractions cover all of this.
+
+**IPC is boilerplate-heavy.** Every desktop command requires a Rust `#[tauri::command]` function, a `spawn_blocking` wrapper, serde types, registration in `generate_handler![]`, and a TypeScript `invokeDesktopCommand()` call. There are 22 commands today. In Electron, the main process is Node — these become direct function calls or simple `ipcMain.handle()` handlers in the same language as the rest of the codebase.
+
+**Tauri plugin gaps.** Features like tray menus with dynamic updates, global shortcuts, deep links, system idle detection, auto-launch on login, and rich clipboard access all require Rust plugins (often per-platform). Electron provides these as JS API calls.
+
+### What we gain
+
+- **Delete `build-managed-runtime.mjs`** — Node comes with Electron
+- **Delete the Wayland/AppImage patching** — Chromium handles it
+- **Delete `paseo_notifications.m`** — `Notification` API works cross-platform
+- **Delete `runtime_manager.rs`** (1080 lines) — daemon becomes a `child_process.fork()` call
+- **Delete all Rust code** — `lib.rs` (683 lines), `desktop_notifications.rs`, `build.rs`, Cargo.toml dependencies
+- **Delete sherpa rpath patching** — `electron-rebuild` handles native addon ABI matching
+- **One language** for the entire desktop app (TypeScript)
+- **Windows support** works out of the box
+- **Mature auto-update** via electron-updater (GitHub Releases, S3, etc.)
+- **Mature code signing** for macOS and Windows without custom scripts
+
+### What we lose
+
+- **App size increases** from ~20 MB to ~150-200 MB (ships Chromium)
+- **Memory footprint increases** (Chromium process model)
+- **Tauri's Rust escape hatch** — though we only use Rust because Tauri requires it, not because we need it
+
+### ONNX / Sherpa native addons
+
+`sherpa-onnx-node` and `onnxruntime-node` ship prebuilt `.node` addons per platform. In Electron, `@electron/rebuild` rebuilds or verifies native addons against Electron's Node ABI. This is standard practice — packages like `better-sqlite3`, `sharp`, and `node-pty` all work this way. The manual sherpa platform package installation and rpath patching goes away entirely.
+
+## What can be collapsed
+
+### Build infrastructure (delete entirely)
+
+| File | Lines | Purpose |
+|---|---|---|
+| `packages/desktop/scripts/build-managed-runtime.mjs` | 590 | Bundle Node + workspaces into Tauri sidecar |
+| `packages/desktop/scripts/validate-managed-runtime.mjs` | ~100 | Validate bundled runtime integrity |
+| `packages/desktop/scripts/sign-managed-runtime-macos.mjs` | ~100 | Code-sign macOS sidecar bundles |
+| `packages/desktop/scripts/managed-daemon-smoke.mjs` | ~50 | Smoke test for managed daemon |
+
+Electron replacement: None. Node is part of Electron. Workspace code loads directly via `require`/`import`.
+
+### Rust backend (delete entirely)
+
+| File | Lines | Purpose |
+|---|---|---|
+| `src-tauri/src/lib.rs` | 683 | App setup, IPC commands, menu, zoom |
+| `src-tauri/src/runtime_manager.rs` | 1080 | Managed runtime/daemon lifecycle |
+| `src-tauri/src/desktop_notifications.rs` | ~80 | Notification bridge |
+| `src-tauri/src/main.rs` | ~10 | Entry point |
+| `src-tauri/build.rs` | ~30 | Build script (compiles ObjC) |
+| `src-tauri/Cargo.toml` | ~30 | Rust dependencies |
+| `src-tauri/tauri.conf.json` | ~100 | Tauri configuration |
+
+Electron replacement: A single `main.ts` (~200-300 lines) covering window creation, menu, IPC handlers, and daemon lifecycle.
+
+### Native platform code (delete entirely)
+
+| File | Purpose |
+|---|---|
+| `src-tauri/macos/paseo_notifications.h` | ObjC notification bridge header |
+| `src-tauri/macos/paseo_notifications.m` | ObjC UNUserNotificationCenter delegate |
+| `src-tauri/Info.plist` | macOS bundle config |
+| `src-tauri/Entitlements.plist` | macOS entitlements |
+| `src-tauri/installer-hooks.nsh` | Windows NSIS post-install hooks |
+
+Electron replacement: `Notification` API (2-3 lines per notification). macOS entitlements handled by `electron-builder` config.
+
+### Daemon management (massive simplification)
+
+**Tauri today:** Bundled Node binary → spawn as child process → pipe stdout/stderr → poll `daemon status --json` in a loop → parse JSON → return via Tauri IPC.
+
+**Electron:** `child_process.fork('./packages/server/dist/scripts/daemon-runner.js')` — same Node runtime, same ABI, direct IPC via Node's built-in channel.
+
+### Local daemon transport (simplification)
+
+**Tauri today:** `runtime_manager.rs` implements a full WebSocket client in Rust (tokio-tungstenite) with session management, base64 binary encoding over Tauri events, and manual read/write task spawning. ~300 lines of Rust.
+
+**Electron:** The renderer can connect to Unix sockets / named pipes directly via the main process using Node's `ws` package (already a dependency). Or use `ipcMain` to proxy — still TypeScript, still ~50 lines.
+
+### Attachment file management (simplification)
+
+**Tauri today:** 6 Rust commands (`write_attachment_base64`, `copy_attachment_file`, `read_file_base64`, `delete_attachment_file`, `garbage_collect_attachment_files`) with path validation, base64 encoding/decoding, and directory traversal protection. ~200 lines of Rust.
+
+**Electron:** Same logic in TypeScript using `fs` and `app.getPath('userData')`. ~50 lines.
+
+### Window management (simplification)
+
+**Tauri today:** Custom `tauri-window.ts` with `plugin:window|start_dragging`, `plugin:window|toggle_maximize`, `plugin:window|is_fullscreen` invocations.
+
+**Electron:** `BrowserWindow` API — `win.maximize()`, `win.isFullScreen()`, etc. Frameless window dragging via CSS `-webkit-app-region: drag`.
+
+### App updates (simplification)
+
+**Tauri today:** Rust `check_app_update` / `install_app_update` commands using `tauri_plugin_updater`. Custom update check UI in the renderer.
+
+**Electron:** `electron-updater` with `autoUpdater.checkForUpdatesAndNotify()`. Built-in download progress, restart handling, differential updates.
+
+## Migration plan
+
+### Guiding principle
+
+Electron is mature. We are not doing anything new. Every feature we need has official documentation and established patterns. Never use workarounds — if something doesn't work, find the official way.
+
+### Phase 1: Scaffold in parallel
+
+Create `packages/desktop-electron` alongside `packages/desktop` (Tauri). Both coexist.
+
+- Initialize with `electron-forge` or `electron-builder`
+- Configure `BrowserWindow` to load the Expo web build (same as Tauri's webview)
+- Set up `electron-builder` for macOS, Linux, Windows packaging
+- Get a window rendering the Expo web app with no desktop features
+
+### Phase 2: Introduce `isElectron` branching
+
+Add platform detection infrastructure in `packages/app`:
+
+- Add `isElectron()` / `isElectronMac()` alongside existing `isTauri()` / `isTauriMac()`
+- Introduce a `isDesktop()` helper that returns `isTauri() || isElectron()`
+- Create `packages/app/src/desktop/electron/invoke-desktop-command.ts` — Electron's equivalent of the Tauri invoke bridge, using `ipcRenderer.invoke()`
+- Update `invokeDesktopCommand()` to route to the correct backend based on platform
+
+### Phase 3: Port features incrementally
+
+Work through each Tauri feature, adding the Electron variant. Never break Tauri while doing this.
+
+**Tier 1 — Core (must work for the app to be usable):**
+
+1. **Daemon lifecycle** — `child_process.fork()` the daemon runner from the main process. Expose `start/stop/restart/status` via `ipcMain.handle()`.
+2. **Local daemon transport** — WebSocket client in the main process using `ws`, proxied to renderer via IPC.
+3. **Window management** — Frameless window with overlay title bar, drag regions, zoom controls, fullscreen.
+4. **Menu** — `Menu.buildFromTemplate()` with zoom controls and macOS app menu.
+
+**Tier 2 — Desktop features:**
+
+5. **Notifications** — `new Notification()` with click handlers.
+6. **App updates** — `electron-updater` with GitHub Releases.
+7. **File dialogs** — `dialog.showOpenDialog()` for directory picker.
+8. **Confirm dialogs** — `dialog.showMessageBox()`.
+9. **Open external URLs** — `shell.openExternal()`.
+10. **Attachment file management** — `fs` operations in main process via IPC.
+
+**Tier 3 — Polish:**
+
+11. **CLI symlink instructions** — Generate platform-specific instructions in Node.
+12. **Logging** — `electron-log` or simple file-based logging.
+13. **Single instance** — `app.requestSingleInstanceLock()`.
+14. **Console forwarding** — No bridge needed, main process is already Node.
+15. **NSIS installer hooks** — `electron-builder` NSIS config for CLI symlink.
+
+### Phase 4: Feature parity validation
+
+- Test all features on macOS, Linux (X11 + Wayland), Windows
+- Verify sherpa-onnx-node loads correctly via `@electron/rebuild`
+- Verify daemon start/stop/restart lifecycle
+- Verify auto-update flow
+- Verify notification callbacks on all platforms
+- Smoke test CLI passthrough mode
+
+### Phase 5: Cut over
+
+- Update CI to build Electron packages instead of Tauri
+- Remove `packages/desktop` (Tauri)
+- Remove all `isTauri()` branching, keep only `isElectron()` (rename to `isDesktop()`)
+- Delete `src-tauri/` and all Rust code
+- Delete `build-managed-runtime.mjs` and related scripts
+- Delete sherpa rpath patching code
+
+## Estimated code impact
+
+| Category | Lines removed | Lines added |
+|---|---|---|
+| Rust backend | ~1,900 | 0 |
+| ObjC native code | ~150 | 0 |
+| Build scripts | ~850 | 0 |
+| Tauri TypeScript bridge | ~300 | ~150 (Electron IPC) |
+| Electron main process | 0 | ~300 |
+| **Net** | **~3,200 removed** | **~450 added** |

packages/app/playwright.webkit.tmp.config.ts

@@ -1,12 +1,11 @@
-import { defineConfig, devices } from "@playwright/test";
+import { defineConfig, devices } from '@playwright/test'
 
 const baseURL =
-  process.env.E2E_BASE_URL ??
-  `http://localhost:${process.env.E2E_METRO_PORT ?? "8081"}`;
+  process.env.E2E_BASE_URL ?? `http://localhost:${process.env.E2E_METRO_PORT ?? '8081'}`
 
 export default defineConfig({
-  testDir: "./e2e",
-  globalSetup: "./e2e/global-setup.ts",
+  testDir: './e2e',
+  globalSetup: './e2e/global-setup.ts',
   timeout: 60_000,
   expect: {
     timeout: 10_000,
@@ -14,17 +13,17 @@ export default defineConfig({
   fullyParallel: false,
   workers: 1,
   retries: 0,
-  reporter: [["list"]],
+  reporter: [['list']],
   use: {
     baseURL,
-    trace: "retain-on-failure",
-    screenshot: "only-on-failure",
-    video: "retain-on-failure",
+    trace: 'retain-on-failure',
+    screenshot: 'only-on-failure',
+    video: 'retain-on-failure',
   },
   projects: [
     {
-      name: "Desktop Safari",
-      use: { ...devices["Desktop Safari"] },
+      name: 'Desktop Safari',
+      use: { ...devices['Desktop Safari'] },
     },
   ],
-});
+})

packages/app/src/components/sidebar-workspace-list.tsx

@@ -73,6 +73,7 @@ import { buildSidebarProjectRowModel } from '@/utils/sidebar-project-row-model'
 import { useNavigationActiveWorkspaceSelection } from '@/stores/navigation-active-workspace-store'
 import { normalizeWorkspaceDescriptor, useSessionStore } from '@/stores/session-store'
 import { createNameId } from 'mnemonic-id'
+import { buildWorkspaceArchiveRedirectRoute } from '@/utils/workspace-archive-navigation'
 
 function toProjectIconDataUri(icon: { mimeType: string; data: string } | null): string | null {
   if (!icon) {
@@ -85,6 +86,7 @@ const workspaceKeyExtractor = (workspace: SidebarWorkspaceEntry) =>
   workspace.workspaceKey
 
 const projectKeyExtractor = (project: SidebarProjectEntry) => project.projectKey
+const EMPTY_WORKSPACES = new Map()
 
 interface SidebarWorkspaceListProps {
   projects: SidebarProjectEntry[]
@@ -789,7 +791,11 @@ function WorkspaceRowWithMenu({
   isCreating?: boolean
 }) {
   const toast = useToast()
+  const activeWorkspaceSelection = useNavigationActiveWorkspaceSelection()
   const archiveWorktree = useCheckoutGitActionsStore((state) => state.archiveWorktree)
+  const sessionWorkspaces = useSessionStore(
+    (state) => state.sessions[workspace.serverId]?.workspaces ?? EMPTY_WORKSPACES
+  )
   const [isArchivingWorkspace, setIsArchivingWorkspace] = useState(false)
   const archiveStatus = useCheckoutGitActionsStore((state) =>
     state.getStatus({
@@ -800,6 +806,27 @@ function WorkspaceRowWithMenu({
   )
   const isWorktree = workspace.workspaceKind === 'worktree'
   const isArchiving = isWorktree ? archiveStatus === 'pending' : isArchivingWorkspace
+  const redirectAfterArchive = useCallback(() => {
+    if (
+      activeWorkspaceSelection?.serverId !== workspace.serverId ||
+      activeWorkspaceSelection.workspaceId !== workspace.workspaceId
+    ) {
+      return
+    }
+
+    router.replace(
+      buildWorkspaceArchiveRedirectRoute({
+        serverId: workspace.serverId,
+        archivedWorkspaceId: workspace.workspaceId,
+        workspaces: sessionWorkspaces.values(),
+      }) as any
+    )
+  }, [
+    activeWorkspaceSelection,
+    sessionWorkspaces,
+    workspace.serverId,
+    workspace.workspaceId,
+  ])
 
   const handleArchiveWorktree = useCallback(() => {
     if (isArchiving) {
@@ -823,12 +850,22 @@ function WorkspaceRowWithMenu({
         serverId: workspace.serverId,
         cwd: workspace.workspaceId,
         worktreePath: workspace.workspaceId,
+      }).then(() => {
+        redirectAfterArchive()
       }).catch((error) => {
         const message = error instanceof Error ? error.message : 'Failed to archive worktree'
         toast.error(message)
       })
     })()
-  }, [archiveWorktree, isArchiving, toast, workspace.name, workspace.serverId, workspace.workspaceId])
+  }, [
+    archiveWorktree,
+    isArchiving,
+    redirectAfterArchive,
+    toast,
+    workspace.name,
+    workspace.serverId,
+    workspace.workspaceId,
+  ])
 
   const handleArchiveWorkspace = useCallback(() => {
     if (isArchivingWorkspace) {
@@ -859,13 +896,21 @@ function WorkspaceRowWithMenu({
         if (payload.error) {
           throw new Error(payload.error)
         }
+        redirectAfterArchive()
       } catch (error) {
         toast.error(error instanceof Error ? error.message : 'Failed to hide workspace')
       } finally {
         setIsArchivingWorkspace(false)
       }
     })()
-  }, [isArchivingWorkspace, toast, workspace.name, workspace.serverId, workspace.workspaceId])
+  }, [
+    isArchivingWorkspace,
+    redirectAfterArchive,
+    toast,
+    workspace.name,
+    workspace.serverId,
+    workspace.workspaceId,
+  ])
 
   const handleCopyPath = useCallback(() => {
     void Clipboard.setStringAsync(workspace.workspaceId)
@@ -927,7 +972,32 @@ function NonGitProjectRowWithMenuContent({
 }) {
   const toast = useToast()
   const contextMenu = useContextMenu()
+  const activeWorkspaceSelection = useNavigationActiveWorkspaceSelection()
+  const sessionWorkspaces = useSessionStore(
+    (state) => state.sessions[workspace.serverId]?.workspaces ?? EMPTY_WORKSPACES
+  )
   const [isArchivingWorkspace, setIsArchivingWorkspace] = useState(false)
+  const redirectAfterArchive = useCallback(() => {
+    if (
+      activeWorkspaceSelection?.serverId !== workspace.serverId ||
+      activeWorkspaceSelection.workspaceId !== workspace.workspaceId
+    ) {
+      return
+    }
+
+    router.replace(
+      buildWorkspaceArchiveRedirectRoute({
+        serverId: workspace.serverId,
+        archivedWorkspaceId: workspace.workspaceId,
+        workspaces: sessionWorkspaces.values(),
+      }) as any
+    )
+  }, [
+    activeWorkspaceSelection,
+    sessionWorkspaces,
+    workspace.serverId,
+    workspace.workspaceId,
+  ])
 
   const handleArchiveWorkspace = useCallback(() => {
     if (isArchivingWorkspace) {
@@ -958,13 +1028,21 @@ function NonGitProjectRowWithMenuContent({
         if (payload.error) {
           throw new Error(payload.error)
         }
+        redirectAfterArchive()
       } catch (error) {
         toast.error(error instanceof Error ? error.message : 'Failed to hide workspace')
       } finally {
         setIsArchivingWorkspace(false)
       }
     })()
-  }, [isArchivingWorkspace, toast, workspace.name, workspace.serverId, workspace.workspaceId])
+  }, [
+    isArchivingWorkspace,
+    redirectAfterArchive,
+    toast,
+    workspace.name,
+    workspace.serverId,
+    workspace.workspaceId,
+  ])
 
   return (
     <>

packages/app/src/utils/workspace-archive-navigation.test.ts

@@ -0,0 +1,76 @@
+import { describe, expect, it } from "vitest";
+import {
+  buildWorkspaceArchiveRedirectRoute,
+  resolveWorkspaceArchiveRedirectWorkspaceId,
+} from "@/utils/workspace-archive-navigation";
+import type { WorkspaceDescriptor } from "@/stores/session-store";
+
+function workspace(
+  input: Partial<WorkspaceDescriptor> & Pick<WorkspaceDescriptor, "id">
+): WorkspaceDescriptor {
+  return {
+    id: input.id,
+    projectId: input.projectId ?? "project-1",
+    projectDisplayName: input.projectDisplayName ?? "Project",
+    projectRootPath: input.projectRootPath ?? "/repo",
+    projectKind: input.projectKind ?? "git",
+    workspaceKind: input.workspaceKind ?? "worktree",
+    name: input.name ?? input.id,
+    status: input.status ?? "done",
+    activityAt: input.activityAt ?? null,
+    diffStat: input.diffStat ?? null,
+  };
+}
+
+describe("resolveWorkspaceArchiveRedirectWorkspaceId", () => {
+  it("redirects an archived worktree to the visible local checkout for the same project", () => {
+    const workspaces = [
+      workspace({ id: "/repo", workspaceKind: "local_checkout", name: "main" }),
+      workspace({ id: "/repo/.paseo/worktrees/feature", name: "feature" }),
+    ];
+
+    expect(
+      resolveWorkspaceArchiveRedirectWorkspaceId({
+        archivedWorkspaceId: "/repo/.paseo/worktrees/feature",
+        workspaces,
+      })
+    ).toBe("/repo");
+  });
+
+  it("falls back to the project root path when the root checkout is not in the visible workspace list", () => {
+    const workspaces = [
+      workspace({
+        id: "/repo/.paseo/worktrees/feature",
+        name: "feature",
+        projectRootPath: "/repo",
+      }),
+    ];
+
+    expect(
+      resolveWorkspaceArchiveRedirectWorkspaceId({
+        archivedWorkspaceId: "/repo/.paseo/worktrees/feature",
+        workspaces,
+      })
+    ).toBe("/repo");
+  });
+
+  it("falls back to the host root route when no alternate workspace target exists", () => {
+    const workspaces = [
+      workspace({
+        id: "/notes",
+        projectId: "notes",
+        projectRootPath: "/notes",
+        projectKind: "non_git",
+        workspaceKind: "directory",
+      }),
+    ];
+
+    expect(
+      buildWorkspaceArchiveRedirectRoute({
+        serverId: "server-1",
+        archivedWorkspaceId: "/notes",
+        workspaces,
+      })
+    ).toBe("/h/server-1");
+  });
+});

packages/app/src/utils/workspace-archive-navigation.ts

@@ -0,0 +1,67 @@
+import type { WorkspaceDescriptor } from "@/stores/session-store";
+import { buildHostRootRoute, buildHostWorkspaceRoute } from "@/utils/host-routes";
+
+function trimNonEmpty(value: string | null | undefined): string | null {
+  if (typeof value !== "string") {
+    return null;
+  }
+
+  const trimmed = value.trim();
+  return trimmed.length > 0 ? trimmed : null;
+}
+
+export function resolveWorkspaceArchiveRedirectWorkspaceId(input: {
+  archivedWorkspaceId: string;
+  workspaces: Iterable<WorkspaceDescriptor>;
+}): string | null {
+  const archivedWorkspaceId = trimNonEmpty(input.archivedWorkspaceId);
+  if (!archivedWorkspaceId) {
+    return null;
+  }
+
+  const workspaces = Array.from(input.workspaces);
+  const archivedWorkspace =
+    workspaces.find((workspace) => workspace.id === archivedWorkspaceId) ?? null;
+  if (!archivedWorkspace) {
+    return null;
+  }
+
+  const sameProjectWorkspaces = workspaces.filter(
+    (workspace) => workspace.projectId === archivedWorkspace.projectId
+  );
+  const rootCheckoutWorkspace =
+    sameProjectWorkspaces.find(
+      (workspace) =>
+        workspace.workspaceKind === "local_checkout" &&
+        workspace.id !== archivedWorkspace.id
+    ) ?? null;
+  if (rootCheckoutWorkspace) {
+    return rootCheckoutWorkspace.id;
+  }
+
+  const fallbackProjectRootPath = trimNonEmpty(archivedWorkspace.projectRootPath);
+  if (fallbackProjectRootPath && fallbackProjectRootPath !== archivedWorkspace.id) {
+    return fallbackProjectRootPath;
+  }
+
+  const siblingWorkspace =
+    sameProjectWorkspaces.find((workspace) => workspace.id !== archivedWorkspace.id) ?? null;
+  return siblingWorkspace?.id ?? null;
+}
+
+export function buildWorkspaceArchiveRedirectRoute(input: {
+  serverId: string;
+  archivedWorkspaceId: string;
+  workspaces: Iterable<WorkspaceDescriptor>;
+}): string {
+  const redirectWorkspaceId = resolveWorkspaceArchiveRedirectWorkspaceId({
+    archivedWorkspaceId: input.archivedWorkspaceId,
+    workspaces: input.workspaces,
+  });
+
+  if (!redirectWorkspaceId) {
+    return buildHostRootRoute(input.serverId);
+  }
+
+  return buildHostWorkspaceRoute(input.serverId, redirectWorkspaceId);
+}