Chore: Move ReqContext to contexthandler service (#62102)

* Chore: Move ReqContext to contexthandler service

* Rename package to contextmodel

* Generate ngalert files

* Remove unused imports

pkg/plugins/accesscontrol.go

@@ -1,8 +1,8 @@
 package plugins
 
 import (
-	"github.com/grafana/grafana/pkg/models"
 	ac "github.com/grafana/grafana/pkg/services/accesscontrol"
+	contextmodel "github.com/grafana/grafana/pkg/services/contexthandler/model"
 	"github.com/grafana/grafana/pkg/services/org"
 	"github.com/grafana/grafana/pkg/setting"
 )
@@ -22,9 +22,9 @@ var (
 	AdminAccessEvaluator = ac.EvalAny(ac.EvalPermission(ActionWrite), ac.EvalPermission(ActionInstall))
 )
 
-func ReqCanAdminPlugins(cfg *setting.Cfg) func(rc *models.ReqContext) bool {
+func ReqCanAdminPlugins(cfg *setting.Cfg) func(rc *contextmodel.ReqContext) bool {
 	// Legacy handler that protects access to the Configuration > Plugins page
-	return func(rc *models.ReqContext) bool {
+	return func(rc *contextmodel.ReqContext) bool {
 		return rc.OrgRole == org.RoleAdmin || cfg.PluginAdminEnabled && rc.IsGrafanaAdmin
 	}
 }

pkg/plugins/manager/client/clienttest/clienttest.go

@@ -7,10 +7,10 @@ import (
 	"testing"
 
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
-	"github.com/grafana/grafana/pkg/models"
 	"github.com/grafana/grafana/pkg/plugins"
 	"github.com/grafana/grafana/pkg/plugins/manager/client"
 	"github.com/grafana/grafana/pkg/services/contexthandler/ctxkey"
+	contextmodel "github.com/grafana/grafana/pkg/services/contexthandler/model"
 	"github.com/grafana/grafana/pkg/services/user"
 	"github.com/grafana/grafana/pkg/web"
 	"github.com/stretchr/testify/require"
@@ -130,7 +130,7 @@ type ClientDecoratorTest struct {
 	TestClient      *TestClient
 	Middlewares     []plugins.ClientMiddleware
 	Decorator       *client.Decorator
-	ReqContext      *models.ReqContext
+	ReqContext      *contextmodel.ReqContext
 	QueryDataReq    *backend.QueryDataRequest
 	QueryDataCtx    context.Context
 	CallResourceReq *backend.CallResourceRequest
@@ -181,7 +181,7 @@ func NewClientDecoratorTest(t *testing.T, opts ...ClientDecoratorTestOption) *Cl
 func WithReqContext(req *http.Request, user *user.SignedInUser) ClientDecoratorTestOption {
 	return ClientDecoratorTestOption(func(cdt *ClientDecoratorTest) {
 		if cdt.ReqContext == nil {
-			cdt.ReqContext = &models.ReqContext{
+			cdt.ReqContext = &contextmodel.ReqContext{
 				Context:      &web.Context{},
 				SignedInUser: user,
 			}