feat(coderd): allow specifying a name for a task (#19745)

Relates to https://github.com/coder/internal/issues/955

Add the ability to the tasks endpoint to give a task a custom name.

codersdk/aitasks.go

@@ -51,6 +51,7 @@ type CreateTaskRequest struct {
 	TemplateVersionID       uuid.UUID `json:"template_version_id" format:"uuid"`
 	TemplateVersionPresetID uuid.UUID `json:"template_version_preset_id,omitempty" format:"uuid"`
 	Prompt                  string    `json:"prompt"`
+	Name                    string    `json:"name,omitempty"`
 }
 
 func (c *ExperimentalClient) CreateTask(ctx context.Context, user string, request CreateTaskRequest) (Task, error) {