docs: update changelog for v0.2.4

The main kugetsu script had its own update_queue_item_state() definition
with broken os.system() calls that overwrote the fixed version in kugetsu-index.sh.

Now kugetsu will use the fixed version from kugetsu-index.sh (which sources
kugetsu-log.sh) since that module is sourced first.

Fixes #170

docs/CHANGELOG.md

@@ -6,6 +6,25 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+## [v0.2.4] - 2026-04-06
+
+### Fixed
+- Queue daemon: Locking to prevent daemon vs manual conflicts
+- Queue daemon: Proper error handling for failed tasks
+- Queue daemon: Fix GITEA_TOKEN loading from pm-agent.env
+- cmd_delegate: Enqueue tasks instead of bypassing queue
+- Notifications: Call kugetsu_add_notification from bash instead of os.system()
+- kugetsu: Remove duplicate update_queue_item_state that overwrote fixed version
+
+### Added
+- Queue functions moved to kugetsu-index.sh for daemon access
+- kugetsu-session.sh sources required modules for daemon use
+
+## [v0.2.3] - 2026-04-06
+
+### Fixed
+- get_pending_tasks() returns proper JSON array instead of concatenated JSON objects
+
 ## [v0.2.1] - 2026-04-03
 
 ### Fixed

skills/kugetsu/scripts/kugetsu

@@ -361,55 +361,6 @@ get_queue_stats() {
     echo "{\"total\": $total, \"pending\": $pending, \"notified\": $notified, \"completed\": $completed, \"error\": $error}"
 }
 
-update_queue_item_state() {
-    local queue_id="$1"
-    local new_state="$2"
-    local session_id="${3:-}"
-    local pid="${4:-}"
-    
-    local item_file="$QUEUE_ITEMS_DIR/${queue_id}.json"
-    if [ ! -f "$item_file" ]; then
-        echo "Error: Queue item not found: $queue_id" >&2
-        return 1
-    fi
-    
-    python3 << PYEOF
-import json
-import os
-from datetime import datetime
-
-item_file = "$item_file"
-new_state = "$new_state"
-session_id = "$session_id"
-pid = "$pid"
-
-with open(item_file, 'r') as f:
-    item = json.load(f)
-
-issue_ref = item.get('issue_ref', '')
-
-item['state'] = new_state
-
-if new_state == "notified":
-    item['notified_at'] = datetime.now().isoformat() + "Z"
-    if session_id:
-        item['opencode_session_id'] = session_id
-    if pid:
-        item['pid'] = int(pid) if pid.isdigit() else None
-elif new_state == "completed":
-    item['completed_at'] = datetime.now().isoformat() + "Z"
-    os.system(f"kugetsu_add_notification 'task_completed' 'Task completed: {issue_ref}' '{issue_ref}'")
-elif new_state == "error":
-    item['error'] = datetime.now().isoformat() + "Z"
-    os.system(f"kugetsu_add_notification 'task_error' 'Task error: {issue_ref}' '{issue_ref}'")
-
-with open(item_file, 'w') as f:
-    json.dump(item, f, indent=2)
-
-print(f"Updated $queue_id to state: $new_state")
-PYEOF
-}
-
 check_task_timeouts() {
     if [ ! -d "$QUEUE_ITEMS_DIR" ]; then
         return