Release MLX Knife 1.0.4 - Issue #14 Chat Self-Conversation Fix & Web UI Overhaul

Fix Issue #14: Interactive chat self-conversation bug resolved
  - Added context-sensitive chat stop tokens (\nHuman:, \nAssistant:, \nYou:, \nUser:)
  - Smart priority system: native model stop tokens first, chat tokens as fallback
  - Affects both `mlxk run` and `mlxk server` modes with backward compatibility

  Web UI complete transformation (simple_chat.html):
  - 🦫 Beaver branding replaces 🔪 knife emoji
  - Model and chat history persistence across browser sessions
  - Smart model switching with option to keep or clear chat history

  Testing infrastructure enhancements:
  - Automated server testing with RAM-aware model filtering
  - 15 new regression tests across 7+ MLX models validating Issue #14 fix
  - Comprehensive TESTING.md guide for server-based testing

  All 114 tests passing

README.md

@@ -8,7 +8,7 @@ A lightweight, ollama-like CLI for managing and running MLX models on Apple Sili
 
 > **Note**: MLX Knife is designed as a command-line interface tool only. While some internal functions are accessible via Python imports, only CLI usage is officially supported.
 
-**Current Version**: 1.0.3 (August 2025)
+**Current Version**: 1.0.4 (August 2025)
 
 [![GitHub Release](https://img.shields.io/github/v/release/mzau/mlx-knife)](https://github.com/mzau/mlx-knife/releases)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
@@ -325,6 +325,6 @@ Copyright (c) 2025 The BROKE team 🦫
 
 <p align="center">
   <b>Made with ❤️ by The BROKE team <img src="broke-logo.png" alt="BROKE Logo" width="30" style="vertical-align: middle;"></b><br>
-  <i>Version 1.0.3 | August 2025</i><br>
+  <i>Version 1.0.4 | August 2025</i><br>
   <a href="https://github.com/mzau/broke-cluster">🔮 Next: BROKE Cluster for multi-node deployments</a>
 </p>