agent: foundation — sync incremental changes from legacy codebase

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

crates/core/src/model_registry.rs

@@ -71,7 +71,7 @@ static ALL_MODELS: LazyLock<Vec<ModelEntry>> = LazyLock::new(|| {
             languages: LanguageSupport::EnglishOnly,
             files: vec![
                 ModelFile {
-                    filename: "model_int8.onnx",
+                    filename: "encoder-model.onnx",
                     url: "https://huggingface.co/onnx-community/parakeet-ctc-0.6b-ONNX/resolve/main/onnx/model_int8.onnx",
                     size: Megabytes(1),
                 },

crates/transcription/src/model_manager.rs

@@ -91,7 +91,7 @@ async fn download_file(
     );
 
     let client = reqwest::Client::builder()
-        .timeout(std::time::Duration::from_secs(30))
+        .connect_timeout(std::time::Duration::from_secs(30))
         .build()
         .map_err(|e| KonError::DownloadFailed(e.to_string()))?;