chore(scripts): record the objectql test-typecheck ratchet as NOT_DRIVER_MANAGED

`gen:test-typecheck-debt` in `@objectstack/objectql` had no recorded merge
disposition, so `check:merge-driver` refused the branch. The artifact it writes
is a shrink-only ratchet — the same file, generator and trade as its
`packages/spec`, `packages/client` and `packages/rest` siblings — so
recomputing it mid-merge would record whatever the half-merged tree compiles to
and let a file that gained errors enter the ledger as merge noise instead of as
red. It therefore takes the NOT_DRIVER_MANAGED side, with no `.gitattributes`
route: routing a shrink-only ratchet is what that ledger exists to prevent.

Accounting in `reconcileGenerators` is keyed per (owner, script), so the entry
carries both `gen` and `owner: '@objectstack/objectql'`; the `packages/client`
and `packages/rest` copies of the same generator are accounted the same way.

Author: claude

scripts/regen-artifacts.mjs

@@ -397,6 +397,20 @@ export const NOT_DRIVER_MANAGED = Object.freeze([
       'a SHRINK-ONLY ratchet — see `packages/client/test-typecheck-debt.json` directly above; '
       + 'same generator, same per-package ledger, same reason a merge must never recompute it.',
   },
+  {
+    path: 'packages/objectql/test-typecheck-debt.json',
+    gen: 'gen:test-typecheck-debt',
+    owner: '@objectstack/objectql',
+    why:
+      'a SHRINK-ONLY ratchet — see `packages/client/test-typecheck-debt.json` above; same '
+      + 'generator, same per-package ledger, same reason a merge must never recompute it: the '
+      + 'half-merged tree is not the tree whose type errors this file records, so a file that '
+      + 'GAINED errors would enter the ledger as merge noise instead of as red. It is the FOURTH '
+      + 'manifest to define `gen:test-typecheck-debt` — the "three manifests" in the client entry '
+      + "above and in `reconcileGenerators`'s header is #13731's count of the ledgers that existed "
+      + 'then, never a bound, and the per-(owner, script) key is exactly what lets a fourth one '
+      + 'arrive needing nothing but this row.',
+  },
   {
     path: 'packages/sdui-parser/objectui-lockstep.json',
     gen: 'gen:sdui-lockstep',