fix(developer/read_image): send a User-Agent on URL image fetches (#9927)

crates/goose/src/agents/platform_extensions/developer/image.rs

@@ -180,6 +180,11 @@ async fn load_image_bytes(source: &str, working_dir: Option<&Path>) -> Result<Ve
 
 async fn load_url_bytes(url: url::Url) -> Result<Vec<u8>, String> {
     let client = reqwest::Client::builder()
+        .user_agent(concat!(
+            "goose/",
+            env!("CARGO_PKG_VERSION"),
+            " (+https://github.com/aaif-goose/goose)"
+        ))
         .timeout(Duration::from_secs(30))
         .build()
         .map_err(|error| format!("failed to create HTTP client: {error}"))?;