[Feature] Add Alerts History page (#973)

* Add alert history

* refactor

* fix one colunm

* update migration

* add retention

beszel/migrations/1_create_alerts_history.go

@@ -0,0 +1,74 @@
+package migrations
+
+import (
+	"github.com/pocketbase/pocketbase/core"
+	m "github.com/pocketbase/pocketbase/migrations"
+)
+
+func init() {
+	m.Register(func(app core.App) error {
+		jsonData := `[
+		{
+			"name": "alerts_history",
+			"type": "base",
+			"system": false,
+			"listRule": "",
+			"deleteRule": "",
+			"viewRule": ""
+			"fields": [
+				{
+					"name": "alert",
+					"type": "relation",
+					"required": true,
+					"collectionId": "elngm8x1l60zi2v",
+					"cascadeDelete": true,
+					"maxSelect": 1
+				},
+				{
+					"name": "user",
+					"type": "relation",
+					"required": true,
+					"collectionId": "_pb_users_auth_",
+					"cascadeDelete": true,
+					"maxSelect": 1
+				},
+				{
+					"name": "system",
+					"type": "relation",
+					"required": true,
+					"collectionId": "2hz5ncl8tizk5nx",
+					"cascadeDelete": true,
+					"maxSelect": 1
+				},
+				{
+					"name": "name",
+					"type": "text",
+					"required": true
+				},
+				{
+					"name": "value",
+					"type": "number",
+					"required": true
+				},
+				{
+					"name": "state",
+					"type": "select",
+					"required": true,
+					"values": ["active", "solved"]
+				},
+				{
+					"name": "created_date",
+					"type": "date",
+					"required": true
+				},
+				{
+					"name": "solved_date",
+					"type": "date",
+					"required": false
+				}
+			]
+		}
+	]`
+		return app.ImportCollectionsByMarshaledJSON([]byte(jsonData), false)
+	}, nil)
+}