chore: auto-commit (43 archivos)

- .mcp.json
- bash/functions/infra/write_mcp_jupyter_config.md
- bash/functions/infra/write_mcp_jupyter_config.sh
- cpp/CMakeLists.txt
- cpp/apps/chart_demo
- cpp/apps/shaders_lab
- cpp/functions/gfx/gl_framebuffer.cpp
- cpp/functions/gfx/gl_framebuffer.h
- cpp/functions/gfx/gl_framebuffer.md
- cpp/functions/gfx/mesh_gpu.md
- ...

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

cpp/functions/gfx/gl_framebuffer.h

@@ -3,14 +3,17 @@
 namespace fn::gfx {
 
 struct Framebuffer {
-    unsigned int fbo = 0;
-    unsigned int tex = 0;  // GL_RGBA8, clamp, linear
-    int width = 0;
-    int height = 0;
+    unsigned int fbo       = 0;
+    unsigned int tex       = 0;        // GL_RGBA8 color
+    unsigned int depth_rbo = 0;        // GL_DEPTH_COMPONENT24 renderbuffer, 0 si sin depth
+    int          width     = 0;
+    int          height    = 0;
+    bool         has_depth = false;
 };
 
-void fb_init(Framebuffer& f);                 // crea fbo+tex 1x1 iniciales
-void fb_resize(Framebuffer& f, int w, int h); // no-op si w,h iguales
-void fb_destroy(Framebuffer& f);
+void fb_init(Framebuffer& f);                        // crea fbo+tex 1x1 (color-only, retro-compat)
+void fb_init_depth(Framebuffer& f);                  // crea fbo+tex+depth_rbo 1x1
+void fb_resize(Framebuffer& f, int w, int h);        // redimensiona color y depth (si has_depth); no-op si iguales
+void fb_destroy(Framebuffer& f);                     // libera fbo, tex y depth_rbo si existen
 
 } // namespace fn::gfx