Annotations: use a single row to represent a region (#17673)

* SQLite migrations

* cleanup

* migrate end times

* switch to update with a query

* real migration

* anno migrations

* remove old docs

* set isRegion from time changes

* use <> for is not

* add comment and fix index decleration

* single validation place

* add test

* fix test

* add upgrading docs

* use AnnotationEvent

* fix import

* remove regionId from typescript

pkg/services/annotations/annotations.go

@@ -18,7 +18,6 @@ type ItemQuery struct {
 	DashboardId  int64    `json:"dashboardId"`
 	PanelId      int64    `json:"panelId"`
 	AnnotationId int64    `json:"annotationId"`
-	RegionId     int64    `json:"regionId"`
 	Tags         []string `json:"tags"`
 	Type         string   `json:"type"`
 	MatchAny     bool     `json:"matchAny"`
@@ -41,7 +40,6 @@ type DeleteParams struct {
 	AlertId     int64
 	DashboardId int64
 	PanelId     int64
-	RegionId    int64
 }
 
 var repositoryInstance Repository
@@ -60,12 +58,12 @@ type Item struct {
 	UserId      int64            `json:"userId"`
 	DashboardId int64            `json:"dashboardId"`
 	PanelId     int64            `json:"panelId"`
-	RegionId    int64            `json:"regionId"`
 	Text        string           `json:"text"`
 	AlertId     int64            `json:"alertId"`
 	PrevState   string           `json:"prevState"`
 	NewState    string           `json:"newState"`
 	Epoch       int64            `json:"epoch"`
+	EpochEnd    int64            `json:"epochEnd"`
 	Created     int64            `json:"created"`
 	Updated     int64            `json:"updated"`
 	Tags        []string         `json:"tags"`
@@ -88,8 +86,8 @@ type ItemDTO struct {
 	Created     int64            `json:"created"`
 	Updated     int64            `json:"updated"`
 	Time        int64            `json:"time"`
+	TimeEnd     int64            `json:"timeEnd"`
 	Text        string           `json:"text"`
-	RegionId    int64            `json:"regionId"`
 	Tags        []string         `json:"tags"`
 	Login       string           `json:"login"`
 	Email       string           `json:"email"`