FS: Call IndexDataHooks for custom version string (#112670)

* Add enterprise hooks

* wip...

* undo

* update wire gen

* remove old hook thing

* move build info into seperate func

* align fs context middleware with grafana, setting SignedInUser

* Call IndexDataHooks to get modified build info

* update tests

* go workspace

* idk, reset workspace files or whatever

* conditionally mount license

* support loading decoupled plugins from cdn

---------

Co-authored-by: Ashley Harrison <ashley.harrison@grafana.com>

pkg/services/frontend/frontend_settings.go

@@ -1,6 +1,9 @@
 package frontend
 
-import "github.com/grafana/grafana/pkg/setting"
+import (
+	"github.com/grafana/grafana/pkg/api/dtos"
+	"github.com/grafana/grafana/pkg/setting"
+)
 
 // This is a copy of dtos.FrontendSettingsDTO with only the fields that the frontend-service
 // sends, to prevent default values from overriding what comes from the /bootdata call.
@@ -20,6 +23,8 @@ type FSFrontendSettings struct {
 	PasswordHint       string `json:"passwordHint,omitempty"`
 	AnonymousEnabled   bool   `json:"anonymousEnabled,omitempty"`
 
+	BuildInfo dtos.FrontendSettingsBuildInfoDTO `json:"buildInfo"`
+
 	GoogleAnalyticsId                   string `json:"googleAnalyticsId,omitempty"`
 	GoogleAnalytics4Id                  string `json:"googleAnalytics4Id,omitempty"`
 	GoogleAnalytics4SendManualPageViews bool   `json:"GoogleAnalytics4SendManualPageViews,omitempty"`