Make it startable from playwright and also isolate (#5016)

Co-authored-by: Douwe Osinga <douwe@squareup.com>

crates/goose/src/execution/manager.rs

@@ -1,12 +1,11 @@
 use crate::agents::extension::PlatformExtensionContext;
 use crate::agents::Agent;
-use crate::config::APP_STRATEGY;
+use crate::config::paths::Paths;
 use crate::model::ModelConfig;
 use crate::providers::create;
 use crate::scheduler_factory::SchedulerFactory;
 use crate::scheduler_trait::SchedulerTrait;
 use anyhow::Result;
-use etcetera::{choose_app_strategy, AppStrategy};
 use lru::LruCache;
 use std::num::NonZeroUsize;
 use std::sync::Arc;
@@ -37,10 +36,7 @@ impl AgentManager {
 
     // Private constructor - prevents direct instantiation in production
     async fn new(max_sessions: Option<usize>) -> Result<Self> {
-        // Construct scheduler with the standard goose-server path
-        let schedule_file_path = choose_app_strategy(APP_STRATEGY.clone())?
-            .data_dir()
-            .join("schedule.json");
+        let schedule_file_path = Paths::data_dir().join("schedule.json");
 
         let scheduler = SchedulerFactory::create(schedule_file_path).await?;