Chore: Annotation store interface (#114100)

* annotation legacy store with api server, read only

* annotations are not addressable by ID for read operations

* add ownership for an app

* typo, of course

* fix go workspace

* update workspace

* copy annotation app in dockerfile

* experimenting with store interface

* finalising interfaces

* add tags as custom handler

* implement tags handler

* add missing config file

* mute linter

* update generated files

* update workspace

pkg/registry/apps/annotation/storage.go

@@ -0,0 +1,47 @@
+package annotation
+
+import (
+	"context"
+
+	annotationV0 "github.com/grafana/grafana/apps/annotation/pkg/apis/annotation/v0alpha1"
+)
+
+type Store interface {
+	Get(ctx context.Context, namespace, name string) (*annotationV0.Annotation, error)
+	List(ctx context.Context, namespace string, opts ListOptions) (*AnnotationList, error)
+	Create(ctx context.Context, annotation *annotationV0.Annotation) (*annotationV0.Annotation, error)
+	Update(ctx context.Context, annotation *annotationV0.Annotation) (*annotationV0.Annotation, error)
+	Delete(ctx context.Context, namespace, name string) error
+}
+
+type ListOptions struct {
+	DashboardUID string
+	PanelID      int64
+	From         int64
+	To           int64
+	Limit        int64
+	Continue     string
+}
+
+type AnnotationList struct {
+	Items    []annotationV0.Annotation
+	Continue string
+}
+
+type LifecycleManager interface {
+	Cleanup(ctx context.Context) (int64, error)
+}
+
+type TagProvider interface {
+	ListTags(ctx context.Context, namespace string, opts TagListOptions) ([]Tag, error)
+}
+
+type TagListOptions struct {
+	Prefix string
+	Limit  int
+}
+
+type Tag struct {
+	Name  string
+	Count int64
+}