Packaged Tauri builds load the React app from a WebView origin while the sidecar API runs on a dynamic localhost port. The opener menu was rendering relative image paths such as /api/open-targets/icons/vscode, so the image request never reached the sidecar and every target fell back to the generic icon.
The desktop API layer now normalizes returned iconUrl values through the configured API base URL, matching how JSON requests already reach the sidecar. This keeps the React menu platform-agnostic while making packaged app icons load from the live server.
Constraint: Tauri production builds do not share the sidecar API origin for normal image src attributes.
Rejected: Build absolute URLs on the server | the server does not know the final browser-visible base URL in every H5/Tauri startup mode.
Confidence: high
Scope-risk: narrow
Directive: Any future API-provided browser asset URL should be normalized through the configured API base URL before assigning it to DOM src/href fields.
Tested: cd desktop && bun run test -- src/api/client.test.ts src/api/openTargets.test.ts src/stores/openTargetStore.test.ts src/components/layout/OpenProjectMenu.test.tsx src/components/layout/TabBar.test.tsx
Tested: cd desktop && bun run lint
Browser-mode startup now preserves the desktop localhost path while prompting for H5 credentials when a non-loopback backend requires verification. The API client and websocket layer share a central token source so REST and session sockets authenticate consistently without leaking the token into diagnostics.
Constraint: Preserve the Tauri startup path and default localhost browser behavior
Rejected: Reuse the generic startup error view for H5 auth failures | it blocks the credential-entry recovery path
Directive: Non-loopback browser startup is the only path that should require saved H5 verification without re-checking the desktop bootstrap contract
Confidence: high
Scope-risk: moderate
Tested: cd desktop && bunx vitest run src/api/client.test.ts src/api/websocket.test.ts src/components/layout/AppShell.test.tsx
Tested: cd desktop && bun run lint
Tested: git diff --check -- desktop/src/api/client.ts desktop/src/api/websocket.ts desktop/src/lib/desktopRuntime.ts desktop/src/components/layout/H5ConnectionView.tsx desktop/src/components/layout/AppShell.tsx desktop/src/api/client.test.ts desktop/src/api/websocket.test.ts desktop/src/components/layout/AppShell.test.tsx
Not-tested: Live remote H5 browser session against a running server
Diagnostics exports previously preserved only compact summaries, which made user-uploaded issue bundles hard to debug. This records richer sanitized details from server, CLI, SDK, browser, React, and desktop API failure paths while keeping request bodies and secrets out of client-side reports.
Constraint: Diagnostic bundles must be useful for GitHub issues without including chat contents, file contents, full environments, or API keys.
Rejected: Only expand the Settings UI summary | the exported bundle would still miss hidden runtime failures.
Confidence: high
Scope-risk: moderate
Directive: Keep diagnostics write paths best-effort and non-blocking; do not add request-body capture without a redaction review.
Tested: bun test src/server/__tests__/diagnostics-service.test.ts src/server/__tests__/conversation-service.test.ts
Tested: cd desktop && bun run test src/api/client.test.ts src/__tests__/diagnosticsSettings.test.tsx --run
Tested: bun run check:server
Tested: bun run check:desktop
Tested: agent-browser E2E on ports 37652/41752 captured client_unhandled_rejection and exported a redacted tar.gz bundle
