delete claude code integration

src/session.rs

@@ -69,7 +69,17 @@ impl HookSession {
 
     /// Get the seen set for this session
     pub fn seen(&self) -> HashSet<String> {
-        super::claude::hook::load_seen(&self.state_dir, &self.session_id)
+        let path = self.state_dir.join(format!("seen-{}", self.session_id));
+        if path.exists() {
+            fs::read_to_string(&path)
+                .unwrap_or_default()
+                .lines()
+                .filter(|s| !s.is_empty())
+                .map(|s| s.split_once('\t').map(|(_, key)| key).unwrap_or(s).to_string())
+                .collect()
+        } else {
+            HashSet::new()
+        }
     }
 
     /// Get transcript metadata, resolving the path if needed.