## Summary
- keep malformed planning-session responses persisted as retryable error
state instead of deleting the session
- add `fn dashboard --supervise` to restart unexpected dashboard exits
with bounded exponential backoff
- document the supervised-dashboard run mode and add a patch changeset
## Test Plan
- `corepack pnpm --filter @runfusion/fusion exec vitest run
src/commands/__tests__/dashboard.test.ts --silent=passed-only
--reporter=dot`
- `corepack pnpm --filter @fusion/dashboard exec vitest run
src/__tests__/session-error-recovery.test.ts --silent=passed-only
--reporter=dot`
- `corepack pnpm --filter @fusion/dashboard exec vitest run
src/__tests__/server.test.ts -t "returns health OK independently"
--silent=passed-only --reporter=dot`
- `corepack pnpm lint`
- `corepack pnpm typecheck`
- `corepack pnpm build`
- `corepack pnpm test:gate`
Note: a full `server.test.ts` run also exposes four existing
routine-runner expectation failures unrelated to this change; the added
health check passes when run by name.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added dashboard supervised mode via a new `--supervise` option, with
automatic restarts using a bounded restart budget and exponential
backoff.
* **Bug Fixes**
* Planning sessions now persist as retryable error states when AI output
can’t be parsed, preventing session loss.
* Improved reliability so `GET /api/health` remains available during
these planning error states.
* **Documentation**
* Documented “Dashboard Availability &amp; Supervised Mode”,
including health-check guidance and operational guardrails.
* **Tests**
* Added test coverage for supervised restart behavior, health during
planning errors, and ensuring no unhandled rejections on parse failures.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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