Match Electron Builder Linux output by accepting linux-*-unpacked directories,
treating AppImage blockmaps as optional, and validating release asset names
against the generated x86_64/amd64 and arm64 artifacts.
Tested: bun test scripts/quality-gate/package-smoke/index.test.ts
Tested: bun test scripts/pr/release-workflow.test.ts scripts/quality-gate/package-smoke/index.test.ts
Tested: bun run check:policy
Tested: bun run check:native
Tested: bun run verify
Confidence: high
Scope-risk: moderate
Electron's sidecar runs outside app.asar, so H5 static files must be available as normal unpacked files. Point the sidecar at the unpacked renderer dist and keep a server fallback for stale app.asar-style paths.
Constraint: Packaged Bun sidecars cannot read app.asar paths with ordinary fs stat calls.
Rejected: Serve H5 from app.asar directly | the external sidecar is not Electron and does not get asar filesystem support.
Confidence: high
Scope-risk: narrow
Directive: Keep package-smoke checking app.asar.unpacked/dist/index.html before changing asarUnpack or H5 dist paths.
Tested: bun test src/server/__tests__/h5-access-auth.test.ts src/server/__tests__/h5-access-policy.test.ts
Tested: bun test desktop/electron/services/sidecarManager.test.ts scripts/quality-gate/package-smoke/index.test.ts
Tested: bun run check:server
Tested: cd desktop && bun run check:electron
Tested: git diff --check
Tested: SKIP_INSTALL=1 SIGN_BUILD=0 MAC_TARGETS=dmg desktop/scripts/build-macos-arm64.sh
Tested: packaged sidecar curl /?serverUrl=...&h5Token=... returned HTTP 200
Not-tested: Gatekeeper notarization for the local ad-hoc DMG
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
