Sync plugins from development repository

Auto-synced from claude-priority-dev:
- plugin-formatter/
- claude-prioritise/
- marketplace.json

Development commit: 6c1f3c430cde5ff7152138a8440d283392cc7b70

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: GitHub Actions <actions@github.com>

Author: actions-user

claude-prioritise/hooks/user-prompt-submit.sh

@@ -39,7 +39,7 @@ fi
 
 # Provide context if message is very short
 MESSAGE_LENGTH=${#USER_MESSAGE}
-if [ $MESSAGE_LENGTH -lt 5 ]; then
+if [ "$MESSAGE_LENGTH" -lt 5 ]; then
   echo "💡 Available commands:"
   echo "   /show-status - Project status summary"
   echo "   /update-backlog - Add backlog items"

plugin-formatter/skills/plugin-formatter/scripts/validate-json.sh

@@ -28,7 +28,6 @@ if [ ! -d "$PLUGIN_DIR" ]; then
   exit 1
 fi
 
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 ERRORS=0
 
 echo "🔍 Validating JSON files in: $PLUGIN_DIR"