The WSL controller previously only stored a failed startup message in its renderer state, so Ubuntu-style silent failures left no trace in main.log. Inject the main-process logger into the controller and emit wsl sidecar ready / wsl sidecar failed to start entries. Also flatten the [server health] renderer logs into a single string argument because Electron's console-message bridge truncates extra args to [object Object].
Serialize non-Error promise rejections so unhandled rejections print type/ctor/keys/JSON instead of the unreadable '[object Object]'. Also emit [server health] logs when a health poll returns unhealthy and when polling switches servers, so a red dot in the status popover comes with a logged URL and auth presence. Minor cosmetic: restore session-header StatusPopover import position after the earlier titlebar experiment.
Same nested-dispose-in-onCleanup bug as 7f36ac2481 but in three more
places: TerminalProvider.disposeAll, PromptProvider.disposeAll, and
scoped-cache.clear() (covers viewCache.clear and comments cache.clear).
All of them synchronously call createRoot dispose() on cached entries
inside onCleanup, which during a server switch nests into the outer
cleanNode cascade and throws TypeError at chunk-*.js:992.
Snapshot the pending disposers, clear the cache synchronously, and
fire the disposers on a microtask so the outer cleanup finishes first.
disposeDirectory called a createRoot dispose() synchronously. When
triggered by pinForOwner's onCleanup during a parent remount (e.g.
switching to a WSL server re-keys the ServerKey Show), the inner
dispose ran a nested cleanNode cascade on a sibling root while the
outer cascade was mid-traversal, corrupting solid-js's graph walk
state and surfacing as TypeError: Cannot read properties of null
(reading '1') at chunk-*.js:992 after ~155 recursive cleanNode frames.
Queue the dispose on a microtask so synchronous bookkeeping still
runs (map deletes, onDispose cache invalidation) but the reactive
cleanup happens after the outer traversal finishes.
Local Server is always Windows-native now; WSL lives as a separate list
of one-or-more distro-bound sidecars spawned alongside it. Manage Servers
shows an Add WSL button on Windows, each WSL server appears as its own
row with remove + retry, and the wizard runs scoped to a new distro.