make sure the model name is always lowcase (#37)

Signed-off-by: kerthcet <kerthcet@gmail.com>

Author: kerthcet

README.md

@@ -23,11 +23,27 @@
 
 ## Installation
 
+### Install with Cargo
+
 ```bash
-make build
+cargo install puma
 ```
 
-The binary will be available as `./puma`.
+### Build from Source
+
+**Prerequisites:** Rust 1.70+ and Make
+
+```bash
+# Clone the repository
+git clone https://github.com/InftyAI/PUMA.git
+cd PUMA
+
+# Build the binary
+make build
+
+# The binary will be available at ./puma
+./puma --version
+```
 
 ## Quick Start
 

docs/images/jimeng-2026-04-25-1076-请为 PUMA 动物设计 logo，侧面头部图案，svg透明格式，像素风格。在头....png

@@ -156,7 +156,8 @@ pub async fn run(cli: Cli) {
         Commands::PULL(args) => match args.provider {
             Provider::Huggingface => {
                 let downloader = HuggingFaceDownloader::new();
-                if let Err(e) = downloader.download_model(&args.model).await {
+                // Make sure to use lowercase for model name to ensure consistent caching and registry entries.
+                if let Err(e) = downloader.download_model(&args.model.to_lowercase()).await {
                     eprintln!("❌ Error downloading model: {}", e);
                     std::process::exit(1);
                 }