quest: plan triage follow-ups: park failing CI, show status in the check

quest/m0/land-fixer/README.md

@@ -102,6 +102,8 @@ resolves itself and what it hands back; that docs update finishes the epic.
 - [Fixer comments](/quest/m0/land-fixer/comments.md) - a per-job, comment-only GitHub token lets the fixer explain its work on the PRs
 - [Attempt budget](/quest/m0/land-fixer/attempts.md) - only a fix that fails again spends a pick's single attempt
 - [Batch triage](/quest/m0/land-fixer/triage.md) - the fixer blames the failing PR before ejection, and a red base halts the queue
+- [CI failures park](/quest/m0/land-fixer/ci-park.md) - a PR whose own required CI fails is parked for the fixer with the failing log, not ejected
+- [Queue status in the required check](/quest/m0/land-fixer/check-status.md) - the gate shows each PR's queue state in its required check run, never completing it
 - [Flaky tests](/quest/m0/land-fixer/flaky.md) - the gate reruns a failed module, disables a flaky test on the batch's base PR, and files a follow-up
 - [Local mergeability](/quest/m0/land-fixer/mergeability.md) - `quest land` merges with the quest driver instead of ejecting on GitHub's conflict flag
 - [Protected edits](/quest/m0/land-fixer/protected.md) - the fixer edits protected paths when it judges the edit mechanical, and the fix lands

quest/m0/land-fixer/check-status.md

@@ -0,0 +1,38 @@
+# [S] The gate shows queue status in its required check
+
+## Goal
+
+Each queued PR's required `quest land` check run shows where the PR stands:
+queued at a position, waiting on named checks, in a batch, parked for the
+fixer, or behind a halted queue. The gate only ever sets that check to queued
+or in progress. It never marks it completed, so GitHub's auto-merge can never
+fire around the gate.
+
+## Plan
+
+Decided 2026-11-01 (user, settling
+[moq-dev/quest#355](https://github.com/moq-dev/quest/pull/355)'s decision 7,
+[record](https://github.com/moq-dev/quest/pull/355#issuecomment-6561562421)):
+"Comment once, but should plan using the require Github check for status? If
+possible?" Triage posts the one comment; this quest is the check-run part.
+
+It is possible. The App already owns the required `quest land` check name;
+the rulesets require it, and nothing reports it today. The App can create a
+check run with that name on each queued PR's head and update its `status`
+(`queued` / `in_progress`) and `output.title` and `output.summary`. While no
+conclusion is ever set, the required check stays unsatisfied. The gate keeps
+landing through its own push or the pinned squash merge, as now.
+
+- One check run per pinned head, updated in place; a new head gets a new run.
+- Never set `conclusion`: a `success` would let auto-merge land the PR
+  without the gate, and any other conclusion would read as a failure.
+- Needs the App's `checks: write`, an installation permission the maintainer
+  accepts. Check it during this work; it may already be granted for the
+  existing check.
+- [Fixer comments](/quest/m0/land-fixer/comments.md) explain decisions on
+  the PR; the check run shows state only.
+
+## Related
+
+- [A PR whose own CI fails is parked](/quest/m0/land-fixer/ci-park.md) - one of the states shown
+- [Batch triage](/quest/m0/land-fixer/triage.md) - the parked, waiting, and halted states

quest/m0/land-fixer/ci-park.md

@@ -0,0 +1,34 @@
+# [S] A PR whose own CI fails is parked for the fixer
+
+## Goal
+
+A queued PR whose required GitHub checks fail is not ejected. The gate
+fetches the failing checks' logs, parks the PR, and starts a fixer job with
+those logs, the same way it handles a failing batch. The PR leaves the queue
+only if the fixer hands it back.
+
+## Plan
+
+Decided 2026-11-01 (user, settling
+[moq-dev/quest#355](https://github.com/moq-dev/quest/pull/355)'s decision 8,
+[record](https://github.com/moq-dev/quest/pull/355#issuecomment-6561562421)):
+
+- A PR whose own required GitHub CI fails:
+  - ✅ Park it with the failing check's log for the fixer
+  - Keep ejecting it at once
+
+It builds on the parking mechanism from [Batch triage](/quest/m0/land-fixer/triage.md)
+(`src/cli/land-park.ts`, and `fail(...)` in `src/cli/land-serve.ts`). Fetch
+each failing check run's log through the App's `checks: read` and
+`actions: read`, and trim it the way the batch failure excerpt is trimmed. A
+fix the fixer pushes reruns the PR's CI. The PR rejoins batches once its
+required checks pass, as with
+[triage](/quest/m0/land-fixer/triage.md)'s `checks_pending` rule.
+
+## Required
+
+- [Batch triage](/quest/m0/land-fixer/triage.md) - provides the parking mechanism
+
+## Related
+
+- [Queue status in the required check](/quest/m0/land-fixer/check-status.md) - shows the PR's parked state