Expect was-client/sync in the root runtime graph.

Signed-off-by: Dmitri Zagidulin <dzagidulin@gmail.com>

Author: dmitrizagidulin

AGENTS.md

@@ -75,7 +75,11 @@ Do not add test files to `tsconfig.json` — they would be emitted into `dist/`.
   builds first and runs under `vitest.packaging.config.ts`). It walks the
   emitted module and declaration graphs to hold the root entry free of `rxdb`
   (ARCHITECTURE.md invariant 14). It is not part of `test:node`, because it
-  asserts over `dist/`.
+  asserts over `dist/`. A change under `src/` is not verified until this suite
+  is green too: it pins the exact set of modules the root entry reaches at
+  runtime, so a new import in the root graph fails it even when `test:node`
+  passes. Run `pnpm run test:packaging` alongside `test:node`, or `pnpm test`
+  for the full sequence.
 - `test/browser/` — Playwright smoke test (`pnpm run test:browser`); loads the
   ROOT entry in real Chromium via a Vite dev server (`pnpm run dev`), which is
   the entry a consumer must be able to load with `rxdb` absent.

test/packaging/rxdbFreeRoot.test.ts

@@ -80,10 +80,13 @@ describe('the root entry is free of rxdb', () => {
   it('reaches no rxdb module at runtime', async () => {
     const bare = await bareSpecifiersFrom('index.js')
     expect([...bare].filter(name => name.startsWith('rxdb'))).toEqual([])
-    // The peer is reached for types only, so no was-client module is in the
-    // runtime graph either; social-core and the two small utilities are.
+    // The was-client peer is reached at runtime only through its `/sync`
+    // subpath, for the `err.name` predicates the conflict handler classifies
+    // with; the root package itself is types-only. social-core and the two
+    // small utilities are the whole of the rest.
     expect([...bare].sort()).toEqual([
       '@interop/social-core',
+      '@interop/was-client/sync',
       'json-canonicalize',
       'uuidv7'
     ])