feat: annotations list CRUD view (#11446)

* annotations list CRUD view

* comment out modal

* update test

* fix lint

superset/views/annotations.py

@@ -17,12 +17,17 @@
 from typing import Any, Dict
 
 from flask_appbuilder import CompactCRUDMixin
+from flask_appbuilder.api import expose
 from flask_appbuilder.models.sqla.interface import SQLAInterface
+from flask_appbuilder.security.decorators import has_access
 from flask_babel import lazy_gettext as _
 from wtforms.validators import StopValidation
 
+from superset import app
 from superset.constants import RouteMethod
+from superset.extensions import feature_flag_manager
 from superset.models.annotations import Annotation, AnnotationLayer
+from superset.typing import FlaskResponse
 from superset.views.base import SupersetModelView
 
 
@@ -48,7 +53,7 @@ class AnnotationModelView(
     SupersetModelView, CompactCRUDMixin
 ):  # pylint: disable=too-many-ancestors
     datamodel = SQLAInterface(Annotation)
-    include_route_methods = RouteMethod.CRUD_SET
+    include_route_methods = RouteMethod.CRUD_SET | {"annotation"}
 
     list_title = _("Annotations")
     show_title = _("Show Annotation")
@@ -92,6 +97,17 @@ class AnnotationModelView(
     def pre_update(self, item: "AnnotationModelView") -> None:
         self.pre_add(item)
 
+    @expose("/<pk>/annotation/", methods=["GET"])
+    @has_access
+    def annotation(self, pk: int) -> FlaskResponse:  # pylint: disable=unused-argument
+        if not (
+            app.config["ENABLE_REACT_CRUD_VIEWS"]
+            and feature_flag_manager.is_feature_enabled("SIP_34_ANNOTATIONS_UI")
+        ):
+            return super().list()
+
+        return super().render_app_template()
+
 
 class AnnotationLayerModelView(SupersetModelView):  # pylint: disable=too-many-ancestors
     datamodel = SQLAInterface(AnnotationLayer)