API: Extract OpenAPI specification from source code using go-swagger (#40528) (#45061)

* API: Using go-swagger for extracting OpenAPI specification from source code

* Merge Grafana Alerting spec

* Include enterprise endpoints (if enabled)

* Serve SwaggerUI under feature flag

* Fix building dev docker images

* Configure swaggerUI

* Add missing json tags

Co-authored-by: Ying WANG <ying.wang@grafana.com>
Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>
(cherry picked from commit 35fe58de37)

pkg/models/dashboards.go

@@ -349,13 +349,13 @@ type SaveDashboardCommand struct {
 
 	UpdatedAt time.Time
 
-	Result *Dashboard
+	Result *Dashboard `json:"-"`
 }
 
 type TrimDashboardCommand struct {
 	Dashboard *simplejson.Json `json:"dashboard" binding:"Required"`
 	Meta      *simplejson.Json `json:"meta"`
-	Result    *Dashboard
+	Result    *Dashboard       `json:"-"`
 }
 
 type DashboardProvisioning struct {