Add updated_at field in process infos

http/api/process.go

@@ -14,6 +14,7 @@ type Process struct {
 	Type      string         `json:"type" jsonschema:"enum=ffmpeg"`
 	Reference string         `json:"reference"`
 	CreatedAt int64          `json:"created_at" jsonschema:"minimum=0" format:"int64"`
+	UpdatedAt int64          `json:"updated_at" jsonschema:"minimum=0" format:"int64"`
 	Config    *ProcessConfig `json:"config,omitempty"`
 	State     *ProcessState  `json:"state,omitempty"`
 	Report    *ProcessReport `json:"report,omitempty"`

http/handler/api/restream.go

@@ -544,6 +544,7 @@ func (h *RestreamHandler) getProcess(id, filterString string) (api.Process, erro
 		Reference: process.Reference,
 		Type:      "ffmpeg",
 		CreatedAt: process.CreatedAt,
+		UpdatedAt: process.UpdatedAt,
 	}
 
 	if wants["config"] {