## Ziel
Jede Mission-Control-Session (Ad-hoc UND Task-Session) soll ihre Arbeit an eine frische Session
uebergeben koennen: "gib das ab an eine neue Session". Die alte Kachel wird geschlossen, an
derselben Position oeffnet eine frische Session im selben cwd, die mit einem Brief startet, den
die abgebende Session selbst geschrieben hat.
Motivation: eine lange Session mit vollem/verrottetem Kontex
ClaudeDo-Task: 8b846deb-ad10-4243-9272-9aea2a01ec93
PasteAsync silently swallowed every exception and returned void, so a
package update renaming Iciclecreek's private write seam would break
Ctrl+V/drop with zero user-visible signal. PasteAsync/SendTextAsync now
return bool (mirroring SendLineAsync), and the view checks the result,
routing a failure through InteractiveTerminalViewModel.ErrorReported ->
ConPtyPaneViewModel.ErrorReported -> the existing footer error strip.
InteractiveTerminalViewModel.HasExitedAfterStartup now covers every
post-startup death that ExitedAfterStartup alone missed (crash, clean
exit, quiet exit inside the grace window) -- previously the tile just
stayed looking alive/thinking with zero signal. ConPtyPaneView binds a
new banner to it (message + Retry + Close); CanRetry simplifies to
"any HasExited state" since the same descriptor factory can relaunch
either kind of death. HandlerRestartCoordinator's worker-side
auto-restart path is untouched.
Eine List-Handler-ConPTY-Session, die mitten in einer Phase stirbt, war bisher
ein stilles totes Tile: InteractiveTerminalViewModel.OnSessionProcessExited
setzte nur bei einem Tod innerhalb des 5s-Grace-Fensters ein sichtbares Banner.
Neu:
- HandlerRoundState (JSON unter ~/.claudeDo/handler-rounds.json, keine
EF-Migration): Phase + Task-Set der laufenden Runde, geschrieben von
BuildForMergeHelperAsync ("triage") und BuildForMergeHelperHandoffAsync.
Ohne das existieren beide nur im transienten HandoffRequested-Broadcast.
- HandlerRestartCoordinator: entscheidet den Neustart, fail-closed. Beleg fuer
"war das Usage-Limit" ist FiveHour.Utilization >= 95 zum Todeszeitpunkt --
eine ConPTY-Session hat kein stdout, TaskRunner.IsUsageLimitMessage hat hier
nichts zu lesen. Nur bei PowerUse (beide Keys), max ein Neustart pro Runde,
Warten bis FiveHour.ResetsAt, dann HandoffRequested erneut broadcasten.
Verbraucht kein Handoff-Budget (HandoffRoundTracker.Register wird nicht
angefasst). WorkerLog-Zeilen beim Tod und beim Neustart.
- Ui meldet den Exit-Code (nur dort bekannt) via
WorkerHub.ReportInteractiveSessionExited, ohne selbst zu filtern.
Sibling zu UsageLimitAutoContinueCoordinator, kein Umbau davon: der sieht nur
headless Runs.
InteractiveSessionId is persisted before the ConPTY process spawns (1a988ff).
If `claude --session-id <guid>` exits immediately after launch (auth/network
hiccup, crash before the TUI starts), OnSessionProcessExited set HasExited
but never StartError, so ConPtyPaneViewModel.CanRetry (which requires
StartError) never offered Retry — every reopen just resumed the same dead
session id, permanently poisoning that task's interactive sessions.
Now a nonzero exit within 5s of the session becoming "running" is treated
as a died-at-startup failure and routed through the same StartError path
as a launch-time exception, so the pane shows the error banner + Retry.
Retry re-fetches the LaunchSpec via BuildForTaskAsync, which reuses the
same persisted InteractiveSessionId — correct for a transient failure
(fresh process, same id), but does not help a genuinely dead session id.
Clearing a dead session id server-side is a separate design question,
left out of scope here.
Submit for Review is now disabled while a ConPTY pane is starting, has
failed to launch, or has already exited, and MissionControlViewModel
guards against a rapid double-click racing two SubmitTaskForReviewAsync
calls. A failed launch no longer permanently occupies its TaskId dedupe
slot -- a Retry button re-fetches the launch spec and restarts the pane
in place. CloseConPtySession/Dispose now also unsubscribe
SubmitForReviewRequested, matching the other pane event handlers. Also
fixes the pre-existing nullable-dereference warning in
IslandsShellViewModel.SyncInteractiveSessionChips.
Mika Kuns