feat: Update devcontainer setup with Dockerfile and improved script for pre-commit hooks

.devcontainer/setup.sh

@@ -1,16 +1,11 @@
 #!/bin/bash
 
 # 1. Fix Git Permissions (Critical in Docker)
-sudo chown -R $(whoami) .git
 git config --global --add safe.directory $(pwd)
 
 # 2. Re-connect Git Hooks
-# 'pre-commit install' is idempotent (it checks if the hook exists and exits fast).
-# It's safe to run on every start.
 if command -v pre-commit &> /dev/null; then
     pre-commit install
 else
     echo "⚠️ Warning: pre-commit not found. Skipping hook installation."
 fi
-
-# We REMOVED 'npm install' from here to speed up your daily workflow.