chore(registry): añadir uses_functions a consumidores reales (viz)

Auditoria del issue 0044: 9 archivos .md de cpp/functions/viz/ con
uses_functions actualizado. Resuelve dependencias detectadas via
#include: plot_static (consumido por bar_chart, histogram, line_plot,
pie_chart, scatter_plot), gl_loader, gl_framebuffer, gl_shader,
graph_force_layout, graph_renderer, graph_spatial_hash, orbit_camera,
sparkline y tokens.

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

cpp/functions/viz/bar_chart.md

@@ -8,7 +8,7 @@ purity: pure
 signature: "void bar_chart(const char* title, const char* const* labels, const float* values, int count, float bar_width = 0.67f, float height = 200.0f)"
 description: "Barras verticales ImPlot con ejes pineados, altura explicita, tooltip al hover y auto-rotacion 45 de labels cuando no caben horizontales"
 tags: [implot, chart, visualization, gpu, bar, tooltip, rotated-labels, locked-axes]
-uses_functions: []
+uses_functions: ["plot_static_cpp_viz"]
 uses_types: []
 returns: []
 returns_optional: false
@@ -33,6 +33,7 @@ params:
   - name: height
     desc: "Altura del plot en pixeles (default 200). Explicita para evitar feedback loops con AutoResizeY"
 output: "Renderiza barras, tooltip al hover con label+valor, y si los labels horizontales no caben los dibuja rotados 45 grados"
+notes: "consumido por cpp/apps/chart_demo/main.cpp; scaffolding/demo en primitives_gallery"
 ---
 
 # bar_chart

cpp/functions/viz/graph_renderer.md

@@ -8,7 +8,7 @@ purity: impure
 signature: "GraphRenderer* graph_renderer_create(int width, int height, const GraphRendererConfig& config)"
 description: "Renderer GPU de grafos con instanced rendering a FBO, compatible con ImGui::Image para visualizacion de grafos grandes"
 tags: [graph, renderer, opengl, gpu, instanced, fbo, visualization]
-uses_functions: []
+uses_functions: ["gl_loader_cpp_gfx"]
 uses_types: ["GraphData_cpp_viz"]
 returns: []
 returns_optional: false

cpp/functions/viz/graph_viewport.md

@@ -8,7 +8,7 @@ purity: impure
 signature: "bool graph_viewport(const char* id, GraphData& graph, GraphViewportState& state, ImVec2 size)"
 description: "Widget ImGui completo para visualizacion interactiva de grafos con pan, zoom, hover, seleccion y layout en vivo"
 tags: [graph, viewport, imgui, interactive, pan, zoom, dashboard]
-uses_functions: ["graph_renderer_cpp_viz", "graph_force_layout_cpp_viz", "graph_spatial_hash_cpp_core"]
+uses_functions: ["graph_force_layout_cpp_viz", "graph_renderer_cpp_viz", "graph_spatial_hash_cpp_core"]
 uses_types: ["GraphData_cpp_viz"]
 returns: []
 returns_optional: false

cpp/functions/viz/histogram.md

@@ -8,7 +8,7 @@ purity: pure
 signature: "void histogram(const char* title, const float* values, int count, int bins = -1, float height = 200.0f)"
 description: "Histograma con bins automaticos, ejes lock (con AutoFit para bins dinamicos) y altura explicita"
 tags: [implot, chart, visualization, gpu, histogram, distribution, locked-axes]
-uses_functions: []
+uses_functions: ["plot_static_cpp_viz"]
 uses_types: []
 returns: []
 returns_optional: false
@@ -31,6 +31,7 @@ params:
   - name: height
     desc: "Altura del plot en pixeles (default 200). Explicita para evitar feedback loops con AutoResizeY"
 output: "Renderiza el histograma en el frame ImGui actual"
+notes: "scaffolding/demo en primitives_gallery"
 ---
 
 # histogram

cpp/functions/viz/line_plot.md

@@ -8,7 +8,7 @@ purity: pure
 signature: "void line_plot(const char* title, const float* xs, const float* ys, int count, float height = 200.0f)"
 description: "Line plot 2D con ImPlot, ejes pineados y altura explicita para no vibrar al redimensionar"
 tags: [implot, chart, visualization, gpu, line, locked-axes]
-uses_functions: []
+uses_functions: ["plot_static_cpp_viz"]
 uses_types: []
 returns: []
 returns_optional: false
@@ -31,6 +31,7 @@ params:
   - name: height
     desc: "Altura del plot en pixeles (default 200). Explicita para evitar feedback loops con contenedores AutoResizeY"
 output: "Renderiza la linea en el frame ImGui actual con ejes pineados"
+notes: "consumido por cpp/apps/chart_demo/main.cpp; scaffolding/demo en primitives_gallery"
 ---
 
 # line_plot

cpp/functions/viz/mesh_viewer.md

@@ -8,7 +8,7 @@ purity: impure
 signature: "void mesh_viewer(const char* id, const MeshViewerConfig& cfg)"
 description: "Renderiza un MeshGpu (3D) en un FBO interno cacheado por id, con orbit camera, iluminacion Lambert headlight, opcion wireframe. Drag/wheel del mouse mueven la camara."
 tags: [imgui, opengl, mesh, 3d, viewer, viz, fbo]
-uses_functions: [mesh_gpu_cpp_gfx, orbit_camera_cpp_core, gl_framebuffer_cpp_gfx]
+uses_functions: ["gl_framebuffer_cpp_gfx", "gl_loader_cpp_gfx", "gl_shader_cpp_gfx", "mesh_gpu_cpp_gfx", "orbit_camera_cpp_core"]
 uses_types: []
 returns: []
 returns_optional: false

cpp/functions/viz/pie_chart.md

@@ -8,7 +8,7 @@ purity: pure
 signature: "void pie_chart(const char* title, const char* const* labels, const float* values, int count, float radius = 0.0f, float height = 200.0f)"
 description: "Pie/donut chart con ImPlot, ejes pineados, altura explicita y tooltip por slice al pasar el mouse"
 tags: [implot, chart, visualization, gpu, pie, donut, tooltip, locked-axes]
-uses_functions: []
+uses_functions: ["plot_static_cpp_viz"]
 uses_types: []
 returns: []
 returns_optional: false
@@ -33,6 +33,7 @@ params:
   - name: height
     desc: "Altura del plot en pixeles (default 200). Explicita para evitar feedback loops con contenedores AutoResizeY"
 output: "Renderiza el pie en el frame ImGui actual; muestra tooltip con label + valor + % al pasar por encima de un slice"
+notes: "scaffolding/demo en primitives_gallery"
 ---
 
 # pie_chart

cpp/functions/viz/scatter_plot.md

@@ -8,7 +8,7 @@ purity: pure
 signature: "void scatter_plot(const char* title, const float* xs, const float* ys, int count, float height = 200.0f)"
 description: "Scatter plot 2D con ImPlot, ejes pineados y altura explicita para no vibrar al redimensionar"
 tags: [implot, chart, visualization, gpu, scatter, locked-axes]
-uses_functions: []
+uses_functions: ["plot_static_cpp_viz"]
 uses_types: []
 returns: []
 returns_optional: false
@@ -31,6 +31,7 @@ params:
   - name: height
     desc: "Altura del plot en pixeles (default 200). Explicita para evitar feedback loops"
 output: "Renderiza el scatter en el frame ImGui actual con ejes pineados"
+notes: "consumido por cpp/apps/chart_demo/main.cpp; scaffolding/demo en primitives_gallery"
 ---
 
 # scatter_plot