Clears the remaining no-unused-vars warnings across the dashboard app and
server, desktop main, and engine sources. Dead React state destructures are
collapsed to setter-only, unused props are underscore-prefixed to preserve
API shape, and unreferenced catch bindings are dropped. No behaviour change.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Add dev-server port detection utilities and wire detected preview state into process/manager lifecycle
- Normalize dev-server status API responses with preview URL, detected port, and manual override compatibility
- Introduce useDevServerLogs and DevServerLogViewer, and integrate them into the DevServer dashboard view
- Expand dashboard test coverage for detection edges, process/routes behavior, log history handling, and CSS regressions
- Extend dev server store with config defaults, normalization, and JSON persistence alongside runtime state.
- Add GET/PUT /api/dev-server/config endpoints with strict request validation for nullable fields and preview URLs.
- Add dashboard API helpers plus a useDevServerConfig hook to load and update selected script, source, command, and preview override.
- Update DevServerView and styles to support saved script selection, change/clear actions, and synchronized command/preview inputs.
- Expand dev server store/routes/component tests and document the config endpoint in architecture docs.
- Introduce DevServerStore and DevServerProcessManager with a simplified store API contract
- Add dev-server script detection and route legacy manager behavior through the new process manager
- Add a dedicated dev-server router with start/stop/status/log endpoints and SSE event streaming
- Wire dev-server routes into the main route table and hook manager shutdown into server teardown
- Expand tests and architecture docs for store, process, route, detection, and SSE coverage
