Fixed Local Build getting stuck

Fixed

• Fixed Local Build getting stuck at "Building Docker Image" — build progress now shows in real time instead of appearing only after the build finishes

• Fixed Docker build logs showing as red errors — build output now shows in correct colors, with red reserved for actual errors only

• Fixed "Docker is not installed" error in the packaged app — Local Build now correctly locates Docker on macOS regardless of install method

• Fixed port conflict error when redeploying Local Build apps — the app now verifies ports are free and cleans up lingering containers before restarting