Fix watch.rs: import notify::Watcher trait, use tauri JoinHandle, drop unused imports

src-tauri/src/watch.rs

@@ -4,26 +4,30 @@
 //! ReadDirectoryChangesW on the WSL 9P mount (`\\wsl$\...`) is unreliable, so
 //! a 60s tokio interval also runs `refresh_and_emit` to backstop missed events.
 
-use std::collections::HashMap;
 use std::path::{Path, PathBuf};
 use std::time::Duration;
 
 use anyhow::Context;
-use notify::{RecommendedWatcher, RecursiveMode};
+use notify::{RecommendedWatcher, RecursiveMode, Watcher};
 use notify_debouncer_full::{new_debouncer, DebounceEventResult, FileIdMap, Debouncer};
+use tauri::async_runtime::JoinHandle;
 use tauri::{AppHandle, Emitter, Manager};
 use tokio::sync::mpsc;
 
 use crate::jsonl::{enumerate_jsonl, parse_jsonl_from, stat as file_stat, UsageEvent};
 use crate::paths::resolve_roots;
-use crate::state::{AppState, FileCache, SharedState};
+use crate::state::{FileCache, SharedState};
 use crate::usage::build_snapshot;
 
 /// Lives for the lifetime of the app (held by AppState). Drop unregisters.
+///
+/// Note: tasks are spawned via `tauri::async_runtime::spawn`, which returns
+/// `tauri::async_runtime::JoinHandle` — distinct from `tokio::task::JoinHandle`
+/// even though we use tokio primitives (`time::interval`, `sync::mpsc`) inside.
 pub struct WatcherHandle {
     _debouncer: Debouncer<RecommendedWatcher, FileIdMap>,
-    _poll_task: tokio::task::JoinHandle<()>,
-    _consumer_task: tokio::task::JoinHandle<()>,
+    _poll_task: JoinHandle<()>,
+    _consumer_task: JoinHandle<()>,
 }
 
 pub fn start(app: AppHandle, state: SharedState) -> anyhow::Result<WatcherHandle> {