test: reduce Bazel module count by consolidating e2e tests into examples (#2791)

Remove 5 standalone e2e Bazel modules (44 → 39) by merging or moving 
tests that don't require their own module-level configuration:

- e2e/npm_link_package-esm: merged into e2e/npm_link_package by adding 
  .mjs ESM variants alongside existing .js files

- e2e/package_json_module: moved to examples/package_json_module; the
  "type: module" scoping is per-directory so it works as a sub-package

- e2e/runfiles: merged into examples/runfiles; added module-name path
  tests (module_name_test.js), nested binary runfiles propagation tests
  (outer.js), and js_run_binary tests (resolve-args.js)

- e2e/stamped_package_json: moved to examples/stamped_package_json;
  added jq.bzl as a dev dep to examples/MODULE.bazel; excluded from
  pnpm workspace since package.json contains a stamp template version

- e2e/worker: moved to examples/worker; no npm deps and bazel_lib +
  rules_nodejs are already available in examples

I also moved the protobuf examples from examples/protobuf into e2e/ for
consistency.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

---

### Changes are visible to end-users: no

### Test plan

- Covered by existing test cases

---------

Co-authored-by: Claude Sonnet 4.6 <[email protected]>

Author: acozzette

.aspect/workflows/config.yaml

@@ -44,9 +44,6 @@ workspaces:
     e2e/npm_link_package:
         icon: npm
         tasks: *e2e_tasks
-    e2e/npm_link_package-esm:
-        icon: npm
-        tasks: *e2e_tasks
     e2e/npm_link_package-rerooted:
         icon: npm
         tasks: *e2e_tasks
@@ -86,9 +83,6 @@ workspaces:
     e2e/npm_translate_yarn_lock:
         icon: yarn
         tasks: *e2e_tasks
-    e2e/package_json_module:
-        icon: npm
-        tasks: *e2e_tasks
     e2e/patch_from_repo:
         icon: npm
         tasks:
@@ -121,18 +115,18 @@ workspaces:
     e2e/pnpm_version:
         icon: pnpm
         tasks: *e2e_tasks
+    e2e/protobuf-es:
+        icon: proto
+        tasks: *e2e_tasks
+    e2e/protobuf-google:
+        icon: proto
+        tasks: *e2e_tasks
     e2e/repo_mapping:
         icon: js
         tasks: *e2e_tasks
     e2e/output_paths:
         icon: js
         tasks: *e2e_tasks
-    e2e/runfiles:
-        icon: js
-        tasks: *e2e_tasks
-    e2e/stamped_package_json:
-        icon: npm
-        tasks: *e2e_tasks
     e2e/vendored_node:
         icon: js
         tasks: *e2e_tasks
@@ -142,9 +136,6 @@ workspaces:
     e2e/verify_patches:
         icon: js
         tasks: *e2e_tasks
-    e2e/worker:
-        icon: js
-        tasks: *e2e_tasks
     # No test targets. Requires running test.sh.
     # e2e/update_pnpm_lock:
     # e2e/update_pnpm_lock_with_import:
@@ -153,12 +144,6 @@ workspaces:
     examples:
         icon: js
         tasks: *e2e_tasks
-    examples/protobuf/bufbuild-es:
-        icon: proto
-        tasks: *e2e_tasks
-    examples/protobuf/google-protobuf:
-        icon: proto
-        tasks: *e2e_tasks
 bazel:
     flags:
         - --config=ci