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
Packaged desktop builds started the sidecar on loopback only, so phones on the same WiFi could not connect to the H5 URL. The server now binds to LAN interfaces while keeping the desktop control URL on loopback, serves the bundled H5 frontend, and reports a LAN public URL when H5 access is enabled.
Constraint: Packaged Tauri resources place ../dist under Contents/Resources/_up_/dist.
Rejected: Bind the desktop control URL to 0.0.0.0 | desktop clients should keep using loopback for local control.
Confidence: high
Scope-risk: moderate
Directive: Keep packaged H5 resource lookup aligned with Tauri resource mapping when changing bundle resources.
Tested: bun run check:server
Tested: cd desktop/src-tauri && cargo test --lib
Tested: cd desktop && bun run test -- desktopRuntime.test.ts generalSettings.test.tsx
Tested: SKIP_INSTALL=1 ./desktop/scripts/build-macos-arm64.sh
Tested: Packaged claude-sidecar smoke served H5 HTML while listening on *:39876
Not-tested: Physical phone browser test on the local WiFi network
