feat(goose-acp): enable parallel sessions with isolated agent state (#6392)

Signed-off-by: Adrian Cole <adrian@tetrate.io>

crates/goose/src/session/diagnostics.rs

@@ -4,7 +4,7 @@ use crate::config::paths::Paths;
 use crate::providers::utils::LOGS_TO_KEEP;
 use crate::session::SessionManager;
 use serde::{Deserialize, Serialize};
-use std::fs::{self};
+use std::fs;
 use std::io::Cursor;
 use std::io::Write;
 use utoipa::ToSchema;
@@ -69,7 +69,10 @@ pub fn get_system_info() -> SystemInfo {
     SystemInfo::collect()
 }
 
-pub async fn generate_diagnostics(session_id: &str) -> anyhow::Result<Vec<u8>> {
+pub async fn generate_diagnostics(
+    session_manager: &SessionManager,
+    session_id: &str,
+) -> anyhow::Result<Vec<u8>> {
     let logs_dir = Paths::in_state_dir("logs");
     let config_dir = Paths::config_dir();
     let config_path = config_dir.join("config.yaml");
@@ -96,7 +99,7 @@ pub async fn generate_diagnostics(session_id: &str) -> anyhow::Result<Vec<u8>> {
             zip.write_all(&fs::read(&path)?)?;
         }
 
-        let session_data = SessionManager::export_session(session_id).await?;
+        let session_data = session_manager.export_session(session_id).await?;
         zip.start_file("session.json", options)?;
         zip.write_all(session_data.as_bytes())?;
 

crates/goose/src/session/mod.rs

@@ -6,4 +6,6 @@ pub mod session_manager;
 
 pub use diagnostics::{generate_diagnostics, get_system_info, SystemInfo};
 pub use extension_data::{EnabledExtensionsState, ExtensionData, ExtensionState, TodoState};
-pub use session_manager::{Session, SessionInsights, SessionManager, SessionType};
+pub use session_manager::{
+    Session, SessionInsights, SessionManager, SessionType, SessionUpdateBuilder,
+};