Ensure terminal runtimes are started through a single in-flight start, invalidate stale async starts on destroy, and load xterm base styles before app globals while hiding helper/accessibility layers in the terminal host.
Tested: cd desktop && bun run check:desktop
Tested: cd desktop && bun run test --run src/lib/desktopHost/contract.test.ts src/pages/TerminalSettings.test.tsx src/lib/desktopHost/electronHost.test.ts electron/ipc/capabilities.test.ts
Tested: cd desktop && bun run lint
Tested: bun run check:desktop
Tested: bun run check:native
Not-tested: bun run check:coverage
Confidence: high
Scope-risk: moderate
Introduce the Electron desktop shell alongside the existing React renderer and local Bun server boundary. The migration keeps the DesktopHost contract explicit across Tauri, Electron, and browser runtimes while adding Electron main/preload services for dialogs, shell, notifications, updates, tray/window lifecycle, terminal, preview WebContentsView, app mode, and release/package validation.
The commit also carries the latest local main desktop command updates, including agent slash entries and hidden-by-default markdown thinking details, so the packaged Electron build matches the current main UX surface.
Constraint: React renderer, local Bun server, REST/WebSocket, and sidecar boundaries must remain reusable during the migration
Constraint: macOS dev packages are ad-hoc signed and cannot prove Developer ID notarization or Gatekeeper release launch
Rejected: Browser-only smoke validation | it cannot exercise native dialogs, keychain prompts, notification behavior, or packaged app startup
Confidence: medium
Scope-risk: broad
Directive: Do not remove Tauri host support until signed Electron release artifacts pass native OS smoke on macOS, Windows, and Linux
Tested: bun run check:desktop
Tested: cd desktop && bun run check:electron
Tested: CSC_IDENTITY_AUTO_DISCOVERY=false bun run electron📦dir
Tested: bun run test:package-smoke --platform macos --package-kind dir --artifacts-dir desktop/build-artifacts/electron
Tested: Computer Use read packaged Electron app window at desktop/build-artifacts/electron/mac-arm64/Claude Code Haha.app
Not-tested: Developer ID signed/notarized Gatekeeper launch
Not-tested: Real OS notification click-to-session action
Not-tested: Windows and Linux packaged app smoke on real hosts
Prepare the desktop release metadata, concise release notes, and the final terminal help polish for the 0.3.1 release. The release note groups the post-0.3.0 work by user-facing area instead of listing every commit, and the desktop version metadata is aligned for the tag-triggered packaging workflow.
Constraint: GitHub Release body is sourced from release-notes/v0.3.1.md in the tagged commit
Rejected: List every post-0.3.0 commit in the release note | too noisy for this patch release
Confidence: high
Scope-risk: narrow
Tested: cd desktop && bun run test -- src/pages/TerminalSettings.test.tsx --run
Tested: bun run check:desktop
Tested: bun run check:native
Tested: bun run verify (passed=8 failed=0 skipped=2)
Not-tested: Live provider release gate
The terminal page used a header row, a status row, and an inner host-shell chrome, which reduced usable terminal space and made wheel scrolling fall into terminal scrollback while users were navigating Settings.
This collapses the terminal metadata and actions into one toolbar, removes the nested host-shell title bar, and forwards wheel input to the surrounding scroll container until the terminal is focused.
Constraint: TerminalSettings is shared by Settings, terminal tabs, and docked session terminals.
Rejected: Increase only the panel height | leaves duplicate chrome and scroll handoff unchanged
Confidence: high
Scope-risk: narrow
Directive: Keep terminal process lifetime separate from visual chrome; this change is layout and wheel routing only.
Tested: cd desktop && bun run test -- src/pages/TerminalSettings.test.tsx src/pages/ActiveSession.test.tsx src/components/layout/ContentRouter.test.tsx
Tested: cd desktop && bun run lint
Tested: bun run check:desktop
Not-tested: Manual Tauri window PTY smoke; browser screenshot unavailable in current tool environment
Users can be typing in the docked terminal when they hide the panel or promote it into a tab. The old component-owned lifecycle treated those UI moves as terminal teardown and spawned a fresh shell afterward.
This moves terminal ownership into a small runtime registry keyed by panel or tab identity, keeps docked terminals mounted while hidden, and transfers the runtime id to the terminal tab when promoted. Closing the owning tab or session still releases the PTY.
Constraint: Keep native PTY behavior unchanged and fix this in the desktop React lifecycle layer.
Rejected: Persist terminal tabs through localStorage | runtime PTYs are process-local and should not be restored after app restart.
Confidence: high
Scope-risk: moderate
Directive: Do not tie terminal process lifetime to panel visibility; only explicit owning-surface close/restart should destroy it.
Tested: cd desktop && bun run test -- src/pages/TerminalSettings.test.tsx src/pages/ActiveSession.test.tsx src/components/layout/ContentRouter.test.tsx src/stores/tabStore.test.ts
Tested: bun run check:desktop
Not-tested: Manual Tauri window PTY smoke.
Remote main carries portable-mode, legacy Windows workdir recovery, and Feishu path-safety fixes while local main carries terminal shell, update proxy, slash-command, prompt-draft, AskUserQuestion, background-work, and shell-env changes. This merge keeps both lines by layering portable Bash-path defaults underneath the desktop terminal shell preference and preserving both update-proxy and app-mode settings state.
Constraint: Local main and origin/main diverged after v0.2.7 and both lines contain release-relevant desktop/runtime fixes
Rejected: Prefer either side's terminal settings wholesale | would drop either Windows portable Bash support or explicit desktop startup-shell support
Confidence: medium
Scope-risk: moderate
Directive: Keep portable Bash path as the system-default terminal fallback; explicit desktop startup-shell settings should continue to override it
Tested: cd desktop && bun run test -- --run src/pages/TerminalSettings.test.tsx src/stores/settingsStore.test.ts
Tested: cd desktop/src-tauri && cargo test terminal -- --nocapture
Tested: bun test src/server/__tests__/sessions.test.ts -t stale worktree
Tested: bun run check:desktop
Tested: bun run check:server
Tested: bun run check:native
Not-tested: Manual Windows packaged-app terminal/portable smoke
The desktop terminal defaulted to COMSPEC on Windows, which commonly lands on cmd.exe and makes the settings terminal feel broken for users who expect PowerShell. This change adds a desktop-only terminal startup-shell setting in Settings, keeps the existing system default untouched unless the user opts in, and resolves the selected shell inside the Tauri PTY spawn path so docked terminals, terminal tabs, and the settings terminal stay aligned.
Constraint: Existing terminal sessions and non-Windows defaults must keep their current behavior unless a Windows user explicitly changes the setting
Rejected: Reuse settings.defaultShell | that setting already controls CLI ! commands and would couple unrelated shell semantics
Rejected: Flip Windows default to pwsh automatically | too risky for users whose current COMSPEC-based terminal already works
Confidence: high
Scope-risk: moderate
Reversibility: clean
Directive: Keep desktop terminal shell selection separate from CLI shell routing unless both paths are redesigned together
Tested: cd desktop && bun run test -- src/stores/settingsStore.test.ts src/pages/TerminalSettings.test.tsx
Tested: cd desktop/src-tauri && cargo test desktop_terminal_shell_resolution -- --nocapture
Tested: bun run check:desktop
Tested: bun run check:native
Not-tested: Real interactive spawn on a physical Windows machine
Desktop terminal access should behave like an IDE: active project sessions open a bottom panel in the session working directory while keeping a full terminal tab available for dedicated use. The panel has constrained resizing and cleanup so session tab state remains isolated, and terminal guidance points users to the bundled claude-haha command for extension setup.
Constraint: Desktop bundles the user-facing CLI as claude-haha while claude-sidecar remains internal
Rejected: Always opening a standalone terminal tab | loses the current project context and diverges from common IDE behavior
Rejected: Exposing claude-sidecar in terminal guidance | it is an internal launcher, not the supportable user command
Confidence: high
Scope-risk: moderate
Directive: Keep bottom terminals keyed by session id and pass session workDir/projectPath into spawned terminals
Tested: bun run check:desktop
Tested: git diff --check
Tested: Computer Use E2E against built macOS app during implementation
Not-tested: bun run quality:pr is blocked by existing branch policy requiring allow-cli-core-change approval
The desktop terminal already supported independent PTY sessions, but it only lived inside settings. This change promotes it to a first-class tab workflow so users can open multiple host terminals without leaving the chat-oriented desktop layout.
Constraint: Tauri terminal sessions are process-backed and must stay mounted while switching tabs.
Rejected: Reuse the settings terminal as a navigated page only | it cannot support multiple independent terminal tabs.
Rejected: Hide inactive xterm panes with display none | xterm lost visible output after tab switches during E2E.
Confidence: high
Scope-risk: moderate
Directive: Keep inactive terminal panes mounted and avoid display none unless xterm repaint behavior is reverified.
Tested: bun run test src/components/layout/ContentRouter.test.tsx src/components/layout/Sidebar.test.tsx src/components/layout/TabBar.test.tsx src/pages/TerminalSettings.test.tsx
Tested: bun run lint
Tested: bun run build
Tested: ./scripts/build-macos-arm64.sh
Tested: Computer Use E2E against build-artifacts/macos-arm64 app for multiple terminals, command output retention, tab switching, and terminal cleanup
Not-tested: Intel macOS package
Some setup flows end in a shell command instead of a natural-language install path, so Settings now exposes a host PTY terminal backed by portable-pty and xterm. The terminal inherits the user's login-shell environment, forces a UTF-8 locale when needed, and preserves split UTF-8 output so Chinese paths render correctly.
Constraint: Desktop GUI apps do not inherit the user's interactive shell PATH on macOS.
Constraint: Command output may split UTF-8 characters across PTY reads.
Rejected: Use Tauri shell commands only | users need an interactive PTY for copy-pasted install flows.
Rejected: Ask users to edit shell profiles | terminal setup should work out of the box.
Confidence: high
Scope-risk: moderate
Directive: Keep terminal startup tied to host environment checks; do not bundle runtimes to solve PATH issues.
Tested: cargo fmt --check; cargo test --lib; cargo check; cd desktop && bun run lint; cd desktop && bun run test src/pages/TerminalSettings.test.tsx; cd desktop && bun run build; cd desktop && bun run build:macos-arm64
Tested: Computer Use verified npm is available in the built macOS app terminal and Chinese output renders after UTF-8 decoding fix.
Not-tested: Native Windows/Linux package runtime validation.
