Document replaces:import and add CRUD/import action examples

tests/test_actions_manifest.py

@@ -188,7 +188,7 @@ class TestActionsManifest(unittest.TestCase):
             if replaces is not None:
                 self.assertIn(
                     replaces,
-                    {"create", "update", "delete"},
+                    {"create", "update", "delete", "import"},
                     msg=f"{action_id} invalid replaces {replaces!r}",
                 )
                 bind = action.get("bind") or {}
@@ -236,7 +236,7 @@ class TestActionsManifest(unittest.TestCase):
         self.assertIn("interactionByPlacement", props)
         by_placement = props["interactionByPlacement"]
         self.assertIs(by_placement.get("additionalProperties"), False)
-        for key in ("toolbar", "row", "batch", "cron", "agent", "skill-detail", "create", "update", "delete"):
+        for key in ("toolbar", "row", "batch", "cron", "agent", "skill-detail", "create", "update", "delete", "import"):
             self.assertIn(key, by_placement.get("properties") or {})
             self.assertEqual(
                 set((by_placement["properties"][key].get("enum") or [])),
@@ -246,7 +246,7 @@ class TestActionsManifest(unittest.TestCase):
         self.assertEqual(props["replaces"].get("$ref"), "#/$defs/mutationKind")
         self.assertEqual(
             set(schema["$defs"]["mutationKind"].get("enum") or []),
-            {"create", "update", "delete"},
+            {"create", "update", "delete", "import"},
         )
 
     def test_schema_defines_hover_hint(self) -> None: