Added scriptable window support to Modularity, Yey!

Scripts/EditorWindowSample.cpp

@@ -0,0 +1,54 @@
+// Minimal sample showing how to expose a custom editor tab from a script binary.
+// Build via the engine’s “Compile Script” action. If compiling manually:
+// Linux:  g++ -std=c++20 -fPIC -O2 -I../src -I../include -c EditorWindowSample.cpp -o ../Cache/ScriptBin/EditorWindowSample.o
+//         g++ -shared ../Cache/ScriptBin/EditorWindowSample.o -o ../Cache/ScriptBin/EditorWindowSample.so -ldl -lpthread
+// Windows: cl /nologo /std:c++20 /EHsc /MD /O2 /I ..\src /I ..\include /c EditorWindowSample.cpp /Fo ..\Cache\ScriptBin\EditorWindowSample.obj
+//          link /nologo /DLL ..\Cache\ScriptBin\EditorWindowSample.obj /OUT:..\Cache\ScriptBin\EditorWindowSample.dll User32.lib Advapi32.lib
+
+#include "ScriptRuntime.h"
+#include "SceneObject.h"
+#include "ThirdParty/imgui/imgui.h"
+#include <string>
+
+namespace {
+bool toggle = false;
+float sliderValue = 0.5f;
+char note[128] = "Hello from script!";
+
+void drawContent(ScriptContext& ctx) {
+    ImGui::TextUnformatted("EditorWindowSample");
+    ImGui::Separator();
+
+    ImGui::Checkbox("Toggle", &toggle);
+    ImGui::SliderFloat("Value", &sliderValue, 0.0f, 1.0f, "%.2f");
+    ImGui::InputText("Note", note, sizeof(note));
+
+    if (ImGui::Button("Log Message")) {
+        ctx.AddConsoleMessage(std::string("Script tab says: ") + note);
+    }
+
+    if (ctx.object) {
+        ImGui::Separator();
+        ImGui::TextDisabled("Selected object: %s (id=%d)", ctx.object->name.c_str(), ctx.object->id);
+        if (ImGui::Button("Nudge +Y")) {
+            auto pos = ctx.object->position;
+            pos.y += 0.25f;
+            ctx.SetPosition(pos);
+            ctx.MarkDirty();
+        }
+    } else {
+        ImGui::TextDisabled("Select an object to enable actions");
+    }
+}
+} // namespace
+
+extern "C" void RenderEditorWindow(ScriptContext& ctx) {
+    // Called every frame while the scripted window is open. Use ImGui freely here.
+    drawContent(ctx);
+}
+
+extern "C" void ExitRenderEditorWindow(ScriptContext& ctx) {
+    // Called once when the user closes the tab from View -> Scripted Windows.
+    // Good place to persist settings or emit a final log.
+    (void)ctx;
+}