Basic shell working.

TerminalFrontend.h

@@ -0,0 +1,27 @@
+/*
+ * TerminalFrontend - couples TerminalInputHandler + TerminalRenderer and owns ncurses lifecycle
+ */
+#ifndef KTE_TERMINAL_FRONTEND_H
+#define KTE_TERMINAL_FRONTEND_H
+
+#include "Frontend.h"
+#include "TerminalInputHandler.h"
+#include "TerminalRenderer.h"
+
+class TerminalFrontend : public Frontend {
+public:
+    TerminalFrontend() = default;
+    ~TerminalFrontend() override = default;
+
+    bool Init(Editor &ed) override;
+    void Step(Editor &ed, bool &running) override;
+    void Shutdown() override;
+
+private:
+    TerminalInputHandler input_{};
+    TerminalRenderer renderer_{};
+    int prev_r_ = 0;
+    int prev_c_ = 0;
+};
+
+#endif // KTE_TERMINAL_FRONTEND_H