data_table v1.3.1: Dots renderer via ImDrawList (font-independent) + recompile all apps with fn_table_viz (issue 0081-O.6)

- Replace TextColored+glyph with ImDrawList::AddCircleFilled in CellRenderer::Dots.
  Dots are now font-independent: no dependency on Unicode glyph coverage. Fixes
  "dots show as ?" on Karla/Roboto/Inter fonts that lack Geometric Shapes block.
- dots_glyph_size now controls circle radius (px) instead of font scale.
- BadgeRule.label is ignored for Dots (documented in data_table_types.h + docs).
- data_table.md bumped to v1.3.1 with capability growth log entry.
- docs/capabilities/data_table_renderers.md: Dots section updated + Common pitfalls
  entry added: "Asumir que cualquier glyph Unicode renderea".
- dag_engine_ui/tabs.cpp: removed stale "● glyph" comment from BadgeRule.
- Recompiled: dag_engine_ui, registry_dashboard, graph_explorer, navegator_dashboard,
  odr_console. All 5 apps deployed to Desktop/apps/. Build Linux + tests 4/4 green.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

cpp/functions/core/data_table_types.h

@@ -208,8 +208,9 @@ struct ColumnSpec {
 
     // Dots (Phase 2.5, v1.3.0): CellRenderer::Dots — inline status sparkline.
     // Cell value is a separator-delimited string of tokens, e.g. "ok,error,ok".
-    // Each token is looked up in `badges` for color (and optional glyph override via label).
-    // Default glyph: u8"●"; override by setting BadgeRule.label to another UTF-8 glyph.
+    // Each token is looked up in `badges` for color. Dots are drawn as filled circles
+    // via ImDrawList (font-independent — no Unicode glyph dependency).
+    // Note: BadgeRule.label is ignored for Dots; it only applies to the Badge renderer.
     char                       dots_separator  = ',';    // separator between tokens
     float                      dots_glyph_size = 0.0f;  // glyph size px; 0 = default font size
     int                        dots_max        = 0;      // hard limit on dots shown; 0 = no limit

cpp/functions/viz/data_table.cpp

@@ -329,18 +329,14 @@ static void draw_cell_custom(const ColumnSpec& spec, const char* value,
 
         case CellRenderer::Dots: {
             // Parse cell value as separator-delimited tokens.
-            std::string s = value;  // value is guaranteed non-null (checked at top)
+            std::string s = value;
             std::vector<std::string> tokens;
             {
                 std::string cur;
                 char sep = spec.dots_separator ? spec.dots_separator : ',';
                 for (char c : s) {
-                    if (c == sep) {
-                        tokens.push_back(cur);
-                        cur.clear();
-                    } else {
-                        cur.push_back(c);
-                    }
+                    if (c == sep) { tokens.push_back(cur); cur.clear(); }
+                    else cur.push_back(c);
                 }
                 if (!cur.empty()) tokens.push_back(cur);
             }
@@ -348,33 +344,46 @@ static void draw_cell_custom(const ColumnSpec& spec, const char* value,
                         ? std::min((int)tokens.size(), spec.dots_max)
                         : (int)tokens.size();
 
+            // Draw filled circles via ImDrawList — font-independent, scales with font size.
+            // BadgeRule.label is ignored for Dots (only relevant for Badge renderer).
+            float font_h    = ImGui::GetTextLineHeight();
+            float radius    = (spec.dots_glyph_size > 0.f ? spec.dots_glyph_size : font_h * 0.32f);
+            float spacing   = radius * 2.3f;
+            ImVec2 origin   = ImGui::GetCursorScreenPos();
+            float dot_y     = origin.y + font_h * 0.5f;
+            ImDrawList* dl  = ImGui::GetWindowDrawList();
+            ImU32 default_col = IM_COL32(110, 110, 125, 255);  // muted grey
+
             for (int t = 0; t < limit; ++t) {
-                if (t > 0) ImGui::SameLine(0, 2.0f);  // tight spacing between dots
-                // Look up color + optional glyph override in badges.
-                ImVec4 color(0.4f, 0.4f, 0.45f, 1.0f);  // default: muted grey
-                const char* glyph = u8"\xe2\x97\x8f";   // UTF-8 for ●
+                ImU32 col = default_col;
                 for (const auto& br : spec.badges) {
                     if (br.value == tokens[t]) {
                         ImVec4 c = hex_to_imcolor(br.color_hex);
-                        if (c.x >= 0.f) color = c;
-                        if (!br.label.empty()) glyph = br.label.c_str();
+                        if (c.x >= 0.f) col = ImGui::ColorConvertFloat4ToU32(c);
                         break;
                     }
                 }
-                // Optional glyph size push.
-                bool pushed_font_scale = false;
-                if (spec.dots_glyph_size > 0.0f) {
-                    float scale = spec.dots_glyph_size / ImGui::GetFontSize();
-                    ImGui::SetWindowFontScale(scale);
-                    pushed_font_scale = true;
-                }
-                ImGui::TextColored(color, "%s", glyph);
-                if (pushed_font_scale) ImGui::SetWindowFontScale(1.0f);
-                // Per-dot tooltip: show the token string.
-                if (spec.tooltip_on_hover && ImGui::IsItemHovered()) {
-                    ImGui::SetTooltip("%s", tokens[t].c_str());
+                float cx = origin.x + radius + t * spacing;
+                dl->AddCircleFilled(ImVec2(cx, dot_y), radius, col, 18);
+            }
+
+            // Reserve cursor space so layout flows correctly.
+            float total_w = (limit > 0 ? (limit * spacing) : 0.f);
+            ImGui::Dummy(ImVec2(total_w, font_h));
+
+            // Hit-test for tooltip per dot.
+            if (spec.tooltip_on_hover && ImGui::IsItemHovered()) {
+                ImVec2 mp = ImGui::GetMousePos();
+                for (int t = 0; t < limit; ++t) {
+                    float cx = origin.x + radius + t * spacing;
+                    float dx = mp.x - cx, dy = mp.y - dot_y;
+                    if (dx*dx + dy*dy <= radius * radius * 1.5f) {
+                        ImGui::SetTooltip("%s", tokens[t].c_str());
+                        break;
+                    }
                 }
             }
+
             if (spec.dots_show_count) {
                 ImGui::SameLine(0, 6.0f);
                 ImGui::TextDisabled("(%d)", (int)tokens.size());

cpp/functions/viz/data_table.md

@@ -3,7 +3,7 @@ name: data_table
 kind: function
 lang: cpp
 domain: viz
-version: "1.3.0"
+version: "1.3.1"
 purity: impure
 signature: "void data_table::render(const char* id, const std::vector<TableInput>& tables, State& st, std::vector<TableEvent>* events_out = nullptr, bool show_chrome = true)"
 description: "Render UI completa de tabla TQL: chips bar, tabla, viz panels, column-stats inline, drill, color rules, joins, TQL editor, Ask AI, Button renderer, event sink (ButtonClick/RowDoubleClick/RowRightClick), tooltip per-cell, column_specs persisted in TQL. Dots renderer para sparkline-like de status (v1.3.0). Entry-point publica del stack data_table. Muta State segun interaccion del usuario."
@@ -184,5 +184,7 @@ v1.2.0 (2026-05-15) — Button renderer + event sink (ButtonClick/RowDoubleClick
 
 v1.3.0 (2026-05-15) — Dots renderer for inline status timelines (sparkline-like). Reuses badges for color mapping. dots_max/dots_separator/dots_show_count/dots_glyph_size fields. TQL roundtrip. dag_engine_ui canonical use case (10-col antipattern -> 6-col fix).
 
+v1.3.1 (2026-05-15) — Dots renderer now draws filled circles via ImDrawList instead of Unicode glyph. Font-independent: works regardless of TTF glyph coverage. Closes "dots show as ?" bug in dag_engine_ui.
+
 ---
 Promovido desde `cpp/apps/primitives_gallery/playground/tables/data_table.{h,cpp}` — issue 0081-H.