`resumeOrphaned` is the only path that recovers tasks after a crash or
restart. On a board with renamed columns it recovered **nothing**.
## A missed pair, not an unconverted read
```ts
const tasks = await this.listWipLaneTasks(); // resolved by role — already converted
const inProgress = tasks.filter(
(t) => t.column === "in-progress" && …, // literal — discards everything the read found
);
```
The read was already resolved. The filter directly beneath it
re-asserted the literal on the rows that read returned, so the sweep
found the orphans and threw them all away.
**This is the worse half of the class, and it hid well:**
- the read *looks* converted, so scanning for `listTasks({ column: "…"
})` finds nothing;
- the census scores only the comparison, so the backlog number moves the
**wrong way** as you convert;
- a **structural test already existed** pinning "the read asks for
resolved lanes" — `executor-resume-query-lanes.test.ts` — and it was
green the entire time the sweep was dead. A test asserting the read
exists says nothing about the filter beneath it.
The failure only surfaces after a crash, when an operator is already
investigating the crash and has every reason to blame that instead.
## The ratchet, generalised
#2944 ratcheted this class inside `self-healing.ts` after review found
one instance and a follow-up audit found five more. This generalises it
to every engine source: a function that resolves lanes **and** compares
a column id in the same body is a pair.
Excluded, deliberately:
- the **fallback arm** of a resolved ternary (`lanes ? lanes.has(c) : c
=== "done"`) — the correct shape;
- four files whose literals are deliberate, each with the reason
recorded: `ephemeral-worker-manager` (unresolvable-workflow default),
`triage` (the U11 orphan case), `scheduler` and `replan-target` (sync
listeners on the inert sync IR reader, already pinned by
`sync-workflow-ir-is-always-default.pg.test.ts`);
- `self-healing.ts`, because it has a **dedicated** ratchet that is
strictly more precise. Two ratchets allowlisting the same site is one
fact with two owners, free to drift — the exact failure mode this
program keeps hitting. One file, one ratchet.
It carries a positive control: a wrong source path would make every case
pass by scanning nothing.
**I swept the rest of the engine with it and executor.ts was the only
genuine hit** — everything else is documented-deliberate or blocked on
the inert sync reader.
## Revert results
Each measured by restoring the literal filter and re-running:
| | reverted → |
| --- | --- |
| behavioural case | fails — the renamed card is dropped and the sweep
returns before touching it |
| the ratchet | fails, naming the site: `resumeOrphaned:
executor.ts:5974` |
A non-vacuous companion (card in the review lane → not resumed) rules
out a filter that matches everything: a card in review has no session to
resume, and re-dispatching it would restart finished work.
**Measured:** `executor.ts` column guards 8 → 7; baseline re-recorded
downward.
## Verification
`pnpm test:gate` 161 + 487 + 13 + 71; executor prompt/soft-delete/resume
suites plus the new ratchet, 357 passed; `tsc` engine clean; `pnpm
lint`, `check:changesets`, census `--strict` and
`check-sql-column-literals` clean, each run explicitly.
c3df0f641b