ci: package __init__ files on the update path start the update E2Es

Importing a/b/c.py runs a/__init__.py and a/b/__init__.py first. The
update-lane routing listed hermes_cli/local_runtime/processes.py (the
v2026.9.24 updater imports it after the pull) but not the package init
that import runs. #134116 changed what that init loads, its PR never ran
e2e-upgrade, and main went red until #134242.

classify_changes now routes the package inits above every module the
e2e_upgrade and e2e_desktop_update lanes own, and above each shared hub,
because a hub's inits run whenever the hub is imported. An init that is
itself a hub stays out. The routing guard's import walker counts the
package inits a module's imports run, so the next unrouted one fails it.
This routes eight inits that were missing: local_runtime, gateway, cron,
tools, tools/environments, plugins, hermes_platform,
hermes_cli/observability.

scripts/ci/classify_changes.py

@@ -451,6 +451,22 @@ _E2E_LANES: dict[str, tuple[str, ...]] = {
         "hermes_cli/web_routers/status.py",
     ),
 }
+
+
+def _with_package_inits(paths: tuple[str, ...]) -> tuple[str, ...]:
+    """Importing a/b/c.py runs a/__init__.py and a/b/__init__.py first, so a routed module
+    routes the package inits above it. A shared hub's inits run whenever the hub is imported, so
+    they are routed too; only an init that is itself a hub stays out."""
+    root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+    inits = [f"{'/'.join(parts[:i])}/__init__.py"
+             for p in (*paths, *sorted(_SHARED_HUBS)) if p.endswith(".py")
+             for parts in [p.split("/")[:-1]] for i in range(1, len(parts) + 1)]
+    return tuple(dict.fromkeys([*paths, *(i for i in inits if i not in _SHARED_HUBS
+                                          and os.path.isfile(os.path.join(root, i)))]))
+
+
+for _lane in ("e2e_upgrade", "e2e_desktop_update"):
+    _E2E_LANES[_lane] = _with_package_inits(_E2E_LANES[_lane])
 # The upgrade journeys are their own lane; editing one does not start ``e2e``.
 # The update suite shares apps/desktop/e2e/ with the core suite but not its specs.
 _E2E_LANE_EXCLUDES = {

tests/ci/test_update_ci_routing.py

@@ -650,6 +650,8 @@ def _imports(path: Path) -> frozenset[str]:
                 base = ".".join([*parts, base] if base else parts)
             names.add(base)
             names.update(f"{base}.{a.name}" for a in node.names)
+    # Importing a.b.c runs a/__init__.py and a/b/__init__.py first.
+    names |= {".".join(n.split(".")[:i]) for n in names for i in range(1, n.count(".") + 1)}
     found = set()
     for name in names:
         target = _module_file(name)

tests/ci/test_update_transitive_routing.py

@@ -17,6 +17,9 @@ from tests.ci.test_update_ci_routing import _REPO, _ci_run, _consumers_reached,
 # backup is the update transaction's pre-build step, not a build dependency.
 @pytest.mark.parametrize("path", [
     "hermes_cli/local_runtime/processes.py",
+    # Importing processes runs the package init: v2026.9.24's update died there on a name
+    # the init's eager imports needed from an already-loaded module.
+    "hermes_cli/local_runtime/__init__.py",
     "agent/deadline.py",
     "agent/memory_provider.py",
     "pm/plugins_state.py",