Document KairosAI features: REST API, System Tray, Smart Layer Allocation, Custom Models

[Copilot]

Updates KairosAI.md to document four new capabilities: built-in REST API server for integration, system tray support, smart GPU/CPU layer allocation, and custom GGUF model import from local files or URLs.

Changes

• Key Features section: Added entries for REST API server, system tray, smart layer allocation, and custom model support
• Use Cases section: Documented how to expose REST endpoints, run in background via system tray, optimize layer distribution, and import custom GGUF models

All additions follow existing documentation structure with emoji prefixes and concise descriptions.

Original prompt

In docs/Examples/KairosAI.md< Add more features like Built-in REST API server for integration, System Tray, Smart Layer Allocation, Custom Models - Add your own GGUF models from local files or URLs

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