chore: remove dead HuggingFace client scaffolding

models/src/models/api/huggingface_client.cpp

@@ -53,9 +53,8 @@ class CurlHttpClient : public HttpInterface {
     }
 
     ~CurlHttpClient() {
-        // Don't call curl_global_cleanup() here as other instances or threads might still be using CURL
-        // CURL cleanup should happen at program exit
-        // TODO: Implement proper cleanup strategy
+        // curl_global_cleanup() is intentionally omitted — other threads may still hold CURL handles.
+        // CURL global state is cleaned up at process exit by the OS.
     }
 
     void requestAsync(
@@ -149,16 +148,6 @@ class CurlHttpClient : public HttpInterface {
         return response;
     }
 
-    void cancelAll() override {
-        // TODO: Implement cancellation
-    }
-
-    bool cancelRequest(const std::string& url) override {
-        (void)url;
-        // TODO: Implement specific request cancellation
-        return false;
-    }
-
     // C-style callback for CURL write function
     static size_t curlWriteCallback(void* contents, size_t size, size_t nmemb, void* userp) {
         size_t realsize = size * nmemb;
@@ -896,12 +885,6 @@ std::vector<FileInfo> HuggingFaceClient::parseFilesResponse(const std::string& j
     return files;
 }
 
-std::string HuggingFaceClient::extractNextPageToken(const std::map<std::string, std::string>& headers) {
-    (void)headers;
-    // TODO: Implement next page token extraction from headers
-    return "";
-}
-
 // Error handling
 void HuggingFaceClient::handleHttpError(int statusCode, const std::string& error, const std::string& endpoint) {
     m_lastError = "HTTP " + std::to_string(statusCode) + ": " + error;
@@ -910,17 +893,7 @@ void HuggingFaceClient::handleHttpError(int statusCode, const std::string& error
     }
 }
 
-// Request management
-void HuggingFaceClient::queueRequest(const http::HttpRequest& request) {
-    m_requestQueue.push(request);
-    processRequestQueue();
-}
-
-void HuggingFaceClient::processRequestQueue() {
-    // TODO: Implement rate limiting and queue processing
-}
-
-// Download management methods (placeholder implementations)
+// Download management methods
 void HuggingFaceClient::sortFilesBySize(std::vector<FileDownloadRequest>& files) {
     std::sort(files.begin(), files.end(),
         [](const FileDownloadRequest& a, const FileDownloadRequest& b) {

models/src/models/api/huggingface_client.h

@@ -69,9 +69,6 @@ namespace http {
         virtual HttpResponse requestSyncWithProgress(const HttpRequest& request,
                                                      ProgressCallback progress) = 0;
 
-        // Cancel operations
-        virtual void cancelAll() = 0;
-        virtual bool cancelRequest(const std::string& url) = 0;
     };
 
     // Factory functions
@@ -203,7 +200,6 @@ class HuggingFaceClient {
 
     // HTTP client management
     std::unique_ptr<http::HttpInterface> m_httpClient;
-    std::queue<http::HttpRequest> m_requestQueue;
     std::unordered_map<std::string, std::string> m_activeRequests; // request_id -> endpoint mapping
 
     // Configuration
@@ -240,15 +236,9 @@ class HuggingFaceClient {
     std::vector<ModelInfo> parseSearchResponse(const std::string& jsonData);
     ModelInfo parseModelInfo(const std::string& jsonData);
     std::vector<FileInfo> parseFilesResponse(const std::string& jsonData);
-    std::string extractNextPageToken(const std::map<std::string, std::string>& headers);
-
     // Error handling
     void handleHttpError(int statusCode, const std::string& error, const std::string& endpoint);
 
-    // Request management
-    void queueRequest(const http::HttpRequest& request);
-    void processRequestQueue();
-
     // Download management methods (merged from ModelDownloader)
     void sortFilesBySize(std::vector<FileDownloadRequest>& files);
     void startNextDownloads(const std::string& modelDownloadId);

models/tests/models/test_huggingface_client.cpp

@@ -63,9 +63,6 @@ class MockHttpClient : public http::HttpInterface {
         return requestSync(request);
     }
 
-    void cancelAll() override {}
-    bool cancelRequest(const std::string& url) override { (void)url; return false; }
-
     void setNextResponse(int statusCode, const std::string& data, const std::string& error = "") {
         nextResponse.statusCode = statusCode;
         nextResponse.data = data;