test(ci): give the daemon wire ledger its own category sample

Merging main brought in the daemon RPC wire-compat gate (#1717), which adds
the `own:daemon-wire-compat` selector rule. The manifest already reported the
category as represented, but only incidentally: `packages/kernel/src/errors.ts`
— the sample standing in for "workspace package source" — happens to be listed
in WIRE_SURFACE_FILES.

That satisfies the universe check while leaving the path-filter reachability
assertion pointed at `packages/**` rather than at the ledger directory, so a
`paths-ignore` excluding `test/wire-compat/**` would not have been caught.
Naming the directory directly closes that.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SkS4S8XXrfkJ8TD1VBKkvJ

Author: claude

scripts/gate-manifest/path-category-samples.ts

@@ -25,6 +25,10 @@ const PATH_CATEGORY_SAMPLES: readonly {
   { label: 'Expo test app', path: 'examples/test-app/App.tsx' },
   { label: 'replay-compat corpus', path: 'test/replay-compat/entry.ad' },
   { label: 'replay-compat fixture', path: 'test/replay-compat/entry.ts' },
+  // A wire-surface file under `packages/` already reaches this rule, but only incidentally —
+  // it is some other category's sample. Naming the ledger directory directly is what puts
+  // `test/wire-compat/**` itself under the path-filter reachability assertion.
+  { label: 'daemon wire ledger', path: 'test/wire-compat/surface.ts' },
   // The public entry surface is only a category when the selector is told which files are
   // published entries, so this sample supplies that input the way `check:affected` does.
   {