Checkpoint 2: integrate native Editor, MCP, gameplay builds and standalone export

include/faset/editor/session.hpp

@@ -0,0 +1,69 @@
+#pragma once
+#include <faset/assets/asset_pipeline.hpp>
+#include <faset/core/process.hpp>
+#include <faset/editor/build_service.hpp>
+#include <faset/editor/commands.hpp>
+#include <faset/editor/plugins.hpp>
+#include <memory>
+#include <mutex>
+#include <thread>
+
+namespace faset::editor {
+struct SessionConfig {
+    std::filesystem::path project_root, engine_root, binary_directory;
+};
+class Session {
+  public:
+    explicit Session(SessionConfig);
+    ~Session();
+    Session(const Session&) = delete;
+    Session& operator=(const Session&) = delete;
+    authoring::AuthoringService& authoring() {
+        return authoring_;
+    }
+    Commands& commands() {
+        return commands_;
+    }
+    void poll();
+    const std::vector<std::string>& logs() const {
+        return logs_;
+    }
+    Json project() const;
+    Json plugin_panels() const {
+        return plugins_ ? plugins_->panels() : Json::array();
+    }
+    void scaffold(const std::string& name, int dimension);
+    const SessionConfig& config() const {
+        return config_;
+    }
+    bool playing() const {
+        return bool(player_);
+    }
+    void log(std::string message);
+
+  private:
+    struct ImportTask;
+    void register_commands();
+    Json assets_list() const;
+    Json jobs() const;
+    Json job(const std::string& id) const;
+    void load_schema(const std::filesystem::path& path);
+    void launch_player(Json scene, const std::filesystem::path& executable);
+    void stop_player();
+    SessionConfig config_;
+    authoring::AuthoringService authoring_;
+    Commands commands_;
+    assets::AssetPipeline assets_;
+    BuildService builds_;
+    std::map<std::string, std::shared_ptr<ImportTask>> imports_;
+    std::vector<std::jthread> workers_;
+    std::vector<std::string> logs_;
+    std::map<std::string, std::string> observed_jobs_;
+    std::unique_ptr<Process> player_;
+    std::filesystem::path control_path_;
+    std::uint64_t control_sequence_ = 0;
+    std::string pending_play_job_;
+    Json pending_play_scene_;
+    std::unique_ptr<PluginManager> plugins_;
+};
+} // namespace faset::editor