test: add E2E tests for parity sync features (#9)

* feat: parity sync with Python SDK — types, client API, events, tool builder

- Add LogLevel, ToolResultType, ReasoningEffort enums with JSON serde
- Add StopError struct and MCPServerConfig variant type
- Add on_lifecycle(), get/set_foreground_session_id() client methods
- Change stop() to return future<vector<StopError>>
- Set COPILOT_SDK_AUTH_TOKEN env var when github_token provided
- Smart use_logged_in_user default (false with token, true without)
- Add SessionShutdown event type with full data parsing
- Add normalize_result<T>() and error-safe handler wrappers in tool builder
- Add URL parsing, large payload JSONRPC, and event forward-compat tests

* test: add 10 E2E tests for parity sync features

Cover foreground session API, graceful stop, lifecycle events,
user input handlers, pre/post tool hooks, user prompt submitted
hook, tool handler exception safety, and make_tool normalize_result.

Author: 0xeb

examples/attachments.cpp

@@ -38,7 +38,7 @@ int main()
     try
     {
         copilot::ClientOptions options;
-        options.log_level = "info";
+        options.log_level = copilot::LogLevel::Info;
 
         copilot::Client client(options);
 

examples/basic_chat.cpp

@@ -14,7 +14,7 @@ int main()
     {
         // Create client with default options (uses stdio transport)
         copilot::ClientOptions options;
-        options.log_level = "info";
+        options.log_level = copilot::LogLevel::Info;
 
         copilot::Client client(options);
 

examples/byok.cpp

@@ -76,7 +76,7 @@ int main(int argc, char* argv[])
 
         // Create client
         copilot::ClientOptions options;
-        options.log_level = "info";
+        options.log_level = copilot::LogLevel::Info;
 
         copilot::Client client(options);
 

examples/compaction_events.cpp

@@ -23,7 +23,7 @@ int main()
     try
     {
         copilot::ClientOptions options;
-        options.log_level = "info";
+        options.log_level = copilot::LogLevel::Info;
 
         copilot::Client client(options);
 

examples/custom_agents.cpp

@@ -23,7 +23,7 @@ int main()
     try
     {
         copilot::ClientOptions options;
-        options.log_level = "info";
+        options.log_level = copilot::LogLevel::Info;
 
         copilot::Client client(options);
 

examples/fluent_tools.cpp

@@ -150,7 +150,7 @@ int main()
         std::cout << "=== Starting Copilot Session ===\n\n";
 
         ClientOptions opts;
-        opts.log_level = "info";
+        opts.log_level = LogLevel::Info;
         opts.use_stdio = true;
         Client client(opts);
 

examples/list_models.cpp

@@ -19,7 +19,7 @@ int main()
     try
     {
         copilot::ClientOptions options;
-        options.log_level = "info";
+        options.log_level = copilot::LogLevel::Info;
 
         copilot::Client client(options);
 

examples/mcp/inprocess/mcp_inprocess.cpp

@@ -195,7 +195,7 @@ int main()
         std::cout << "Creating Copilot SDK client...\n";
 
         copilot::ClientOptions client_opts;
-        client_opts.log_level = "info";
+        client_opts.log_level = copilot::LogLevel::Info;
 
         copilot::Client client(client_opts);
         client.start().get();

examples/mcp_servers.cpp

@@ -23,7 +23,7 @@ int main()
     try
     {
         copilot::ClientOptions options;
-        options.log_level = "info";
+        options.log_level = copilot::LogLevel::Info;
 
         copilot::Client client(options);
 

examples/permission_callback.cpp

@@ -62,7 +62,7 @@ int main()
 
         // Create client
         copilot::ClientOptions options;
-        options.log_level = "info";
+        options.log_level = copilot::LogLevel::Info;
 
         copilot::Client client(options);