Distinguish between actual network downloads and GPU memory loading for cached LoRA adapters in Studio chat.
- Add isCachedLora detection for local LoRA adapter paths using comprehensive cross-platform regex (Unix, Windows, UNC, WSL, tilde)
- Thread isCachedLora through loadInfo to chat-page inline status for proper 3-way distinction (cached / local LoRA / downloading)
- Skip download progress polling for cached LoRA models (no useless /download-progress API calls)
- Fix initial toast state to use isCachedLoad consistently instead of only checking isDownloaded
- Fix cancelLoading toast to not mention background downloads for cached/local loads
- Keep download-specific text ("Downloading model..." / "Download complete") inside the download-only polling block
ba8081fc96