docs: expose map performance notes

src/data/docs/docsSections.ts

@@ -80,6 +80,12 @@ export const docGroups: DocGroup[] = [
         subtitle: "Step into Three.js internals",
         meta: "11",
       },
+      {
+        path: "/docs/map-performance",
+        title: "Map Performance",
+        subtitle: "Draw calls, triangles, and streaming",
+        meta: "12",
+      },
     ],
   },
   {
@@ -89,25 +95,25 @@ export const docGroups: DocGroup[] = [
         path: "/docs/features",
         title: "Features",
         subtitle: "Implemented scope",
-        meta: "12",
+        meta: "13",
       },
       {
         path: "/docs/main-feature",
         title: "Main Feature",
         subtitle: "Repair-game prototype",
-        meta: "13",
+        meta: "14",
       },
       {
         path: "/docs/editor",
         title: "Editor User Guide",
         subtitle: "Editing workflow",
-        meta: "14",
+        meta: "15",
       },
       {
         path: "/docs/animation",
         title: "Animation & 3D Model System",
         subtitle: "Components and usage",
-        meta: "15",
+        meta: "16",
       },
     ],
   },
@@ -118,7 +124,7 @@ export const docGroups: DocGroup[] = [
         path: "/docs/code-review",
         title: "Code Review Prep",
         subtitle: "Presentation support",
-        meta: "16",
+        meta: "17",
       },
     ],
   },