Refactor suppression mechanism for file watcher events

- Updated the suppression logic for file watcher events to use a HashMap instead of a HashSet, allowing for count-based suppression. Each API write increments the count, while each suppressed VFS event decrements it.
- Introduced a new method to register paths in the suppression map, improving the handling of redundant re-snapshots and WebSocket messages.
- Enhanced logging for suppressed events to provide better context during debugging.
- Adjusted related structures and methods across ChangeProcessor, ServeSession, and ApiService to accommodate the new suppression mechanism.

tests/rojo_test/serve_util.rs

@@ -293,7 +293,10 @@ impl TestServeSession {
             .serialize(&mut serializer)
             .expect("Failed to serialize WriteRequest");
 
-        let client = reqwest::blocking::Client::new();
+        let client = reqwest::blocking::Client::builder()
+            .timeout(Duration::from_secs(60))
+            .build()
+            .expect("Failed to build reqwest client");
         let response = client.post(url).body(body).send()?;
 
         if !response.status().is_success() {