[MM-64686] Expose audit logging functionality via plugin API (#31204)

This commit exposes audit logging functionality to plugins via the plugin API, allowing plugins to create and log audit records. Additionally, it addresses a gob encoding issue that could cause plugin crashes when audit data contains nil pointers or unregistered types.

server/cmd/mattermost/commands/jobserver.go

@@ -10,9 +10,9 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/mattermost/mattermost/server/public/shared/request"
 	"github.com/mattermost/mattermost/server/v8/channels/app"
-	"github.com/mattermost/mattermost/server/v8/channels/audit"
 	"github.com/mattermost/mattermost/server/v8/config"
 )
 
@@ -59,7 +59,7 @@ func jobserverCmdF(command *cobra.Command, args []string) error {
 	}
 
 	if !noJobs || !noSchedule {
-		auditRec := a.MakeAuditRecord(rctx, "jobServer", audit.Success)
+		auditRec := a.MakeAuditRecord(rctx, "jobServer", model.AuditStatusSuccess)
 		a.LogAuditRec(rctx, auditRec, nil)
 	}