feat(kotlin-compose): design system + 33 components + gallery_kt + e2e android emulator + scaffolder fixes

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

cpp/functions/gfx/sokol_setup.h

@@ -0,0 +1,27 @@
+#pragma once
+
+// sokol_setup — helpers para inicializar sokol_gfx sobre un GL context
+// creado por SDL3 (no por sokol_app). Issue 0072b.
+//
+// Uso tipico:
+//   SDL_Window* w = SDL_CreateWindow(...);
+//   SDL_GLContext gl = SDL_GL_CreateContext(w);
+//   sg_setup({ .environment = fn::gfx::make_environment(),
+//              .logger.func = slog_func });
+//   ...
+//   sg_pass p{}; p.swapchain = fn::gfx::make_swapchain(width, height);
+//   sg_begin_pass(&p);
+
+#include "sokol_gfx.h"
+
+namespace fn::gfx {
+
+// Default environment for an SDL3-managed GL context.
+// color RGBA8, depth+stencil, no MSAA. Override fields as needed.
+sg_environment make_environment();
+
+// Build a default swapchain for the current SDL3 window framebuffer.
+// Pass current drawable dimensions in pixels.
+sg_swapchain make_swapchain(int width, int height);
+
+}  // namespace fn::gfx