- Add preview embed diagnostics with richer error classification and fallback state handling
- Improve PreviewIframe and DevServerView retry UX for timeout and iframe failure states
- Adjust preview layout/styles to prevent clipping and header overflow while keeping fallback panels centered
- Expand dashboard tests to cover fallback transitions, retry flows, and responsive CSS behavior
- 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
