Complete build wiring and CLI file commands

Align documented commands with the CLI, enable optional GUI/test targets, and remove committed API secrets so the project is safer to build and run.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

dstalk-core/CMakeLists.txt

@@ -32,10 +32,3 @@ target_compile_definitions(dstalk
     PRIVATE DSTALK_BUILD_DLL
     INTERFACE DSTALK_USE_DLL
 )
-
-# Windows: 生成 .lib 导入库和 .dll
-if(WIN32)
-    set_target_properties(dstalk PROPERTIES
-        WINDOWS_EXPORT_ALL_SYMBOLS ON
-    )
-endif()

dstalk-core/src/ai/deepseek_api.hpp

@@ -14,6 +14,7 @@ struct Message {
 
 // API 配置
 struct ApiConfig {
+    std::string provider;       // 默认 "deepseek"
     std::string base_url;       // 默认 "https://api.deepseek.com/v1"
     std::string api_key;
     std::string model;          // 默认 "deepseek-chat"

dstalk-core/src/api.cpp

@@ -19,6 +19,7 @@ dstalk::ai::ApiConfig      g_config;
 std::vector<dstalk::ai::Message> g_history;
 
 // 默认配置
+const char* DEFAULT_PROVIDER = "deepseek";
 const char* DEFAULT_BASE_URL = "https://api.deepseek.com/v1";
 const char* DEFAULT_MODEL    = "deepseek-chat";
 
@@ -79,7 +80,9 @@ void parse_config_file(const char* path)
             val = val.substr(1, val.size() - 2);
 
         if (current_section == "api") {
-            if (key == "api_key" || key == "apikey")
+            if (key == "provider")
+                g_config.provider = val;
+            else if (key == "api_key" || key == "apikey")
                 g_config.api_key = val;
             else if (key == "base_url")
                 g_config.base_url = val;
@@ -98,6 +101,7 @@ DSTALK_API int dstalk_init(const char* config_path)
     if (g_initialized) return -1;
 
     // 设置默认值
+    g_config.provider   = DEFAULT_PROVIDER;
     g_config.base_url   = DEFAULT_BASE_URL;
     g_config.model      = DEFAULT_MODEL;
     g_config.max_tokens = 4096;

dstalk-core/src/net/http_client_win.cpp

@@ -219,5 +219,5 @@ HttpResponse HttpClient::post_stream(
 
 #else
 // 非 Windows: 需要 Boost.Beast 实现 (编译时会报错提示)
-#  error "Non-Windows HTTP client not implemented yet. Use Boost.Beast version."
+#  error "WinHTTP backend is Windows-only. Use net/http_client.cpp for non-Windows builds."
 #endif