Adding the debug bar logic in the server (#22410)

* Adding debugbar layer

* Adding sql debugbar info

* Make duration consistent across the debugbar lines

* Adding the debugbar/systeminfo endpoint

* Adding logs to the debugbar

* Improve the debugbar logger fields info

* Improving the debug bar architecture

* Allow to enable/disable debugbar in the backend

* Exposing the Debug Bar enable in the client config

* Adding more system information to the debugbar

* Adding params info to the store layer

* Organizing a bit the debugbar code in the server and adding some extra data to the system info api

* Adding debugbar email traces

* Changing the socket event name to 'debugbar'

* Adding explain support for the debugbar

* Adding missed file

* Omitting data related to the debugbar itself

* Removing unneeded functions

* Avoid arbitrary execution in explain api

* Moving debugbar inside the platform directory

* Replacing debugbar logger with a new logger Target

* Removed uneeded changes

* Fixing some linter errors

* Adding a debugbar log level to use it later for log events strictly related to the debug bar

* Fixing linter errors

* Fixing tests

* Adding i18n strings

api4/api.go

@@ -103,6 +103,8 @@ type Routes struct {
 
 	Jobs *mux.Router // 'api/v4/jobs'
 
+	DebugBar *mux.Router // 'api/v4/debugbar'
+
 	Preferences *mux.Router // 'api/v4/users/{user_id:[A-Za-z0-9]+}/preferences'
 
 	License *mux.Router // 'api/v4/license'
@@ -235,6 +237,7 @@ func Init(srv *app.Server) (*API, error) {
 	api.BaseRoutes.Public = api.BaseRoutes.APIRoot.PathPrefix("/public").Subrouter()
 	api.BaseRoutes.Reactions = api.BaseRoutes.APIRoot.PathPrefix("/reactions").Subrouter()
 	api.BaseRoutes.Jobs = api.BaseRoutes.APIRoot.PathPrefix("/jobs").Subrouter()
+	api.BaseRoutes.DebugBar = api.BaseRoutes.APIRoot.PathPrefix("/debugbar").Subrouter()
 	api.BaseRoutes.Elasticsearch = api.BaseRoutes.APIRoot.PathPrefix("/elasticsearch").Subrouter()
 	api.BaseRoutes.Bleve = api.BaseRoutes.APIRoot.PathPrefix("/bleve").Subrouter()
 	api.BaseRoutes.DataRetention = api.BaseRoutes.APIRoot.PathPrefix("/data_retention").Subrouter()
@@ -298,6 +301,7 @@ func Init(srv *app.Server) (*API, error) {
 	api.InitDataRetention()
 	api.InitBrand()
 	api.InitJob()
+	api.InitDebugBar()
 	api.InitCommand()
 	api.InitStatus()
 	api.InitWebSocket()