add: añadida gráfica final. reforzada la seguridad en el payload para la petición a "build"

frontend/src/components/editor/Step3FinalGraph.jsx

@@ -0,0 +1,87 @@
+import {
+  LineChart, Line, XAxis, YAxis, CartesianGrid, Tooltip, Legend, ResponsiveContainer
+} from 'recharts';
+import { CHART_COLORS } from '../../config';
+
+const Step3FinalGraph = ({ data }) => {
+  if (!data || !data.results) return <p>Cargando gráfico final...</p>;
+
+  const resultsWithOriginalIndex = data.results.map((item, index) => ({
+    ...item,
+    originalIndex: index
+  }));
+
+  const sortedResults = [...resultsWithOriginalIndex].sort((a, b) => {
+    const valA = a.core ? a.core[0] : 0;
+    const valB = b.core ? b.core[0] : 0;
+    return valA - valB;
+  });
+
+  return (
+    <div className="w-full h-[500px] mt-2 bg-white p-6 rounded-2xl shadow-sm border border-slate-200">
+      <h3 className="text-2xl font-bold mb-8 text-center text-slate-800">Espectro Difuso Final</h3>
+      
+      <ResponsiveContainer width="100%" height="90%">
+        <LineChart margin={{ top: 10, right: 30, left: 10, bottom: 40 }}>
+          <CartesianGrid strokeDasharray="3 3" opacity={0.5} vertical={false} />
+          
+          <XAxis 
+            dataKey="x" 
+            type="number" 
+            domain={[0, 1]}
+            tickCount={11}
+            tick={{ fill: '#475569', fontWeight: 600, fontSize: 14 }}
+            allowDuplicatedCategory={false}
+          />
+          <YAxis 
+            domain={[0, 1]} 
+            tickCount={6} 
+            tick={{ fill: '#475569', fontSize: 14 }}
+          />
+          
+          <Tooltip 
+            formatter={(value, name) => [value.toFixed(3), name]}
+            labelFormatter={(label) => `X: ${Number(label).toFixed(3)}`}
+            contentStyle={{ borderRadius: '12px', border: 'none', boxShadow: '0 10px 15px -3px rgb(0 0 0 / 0.1)' }}
+          />
+          
+          <Legend 
+            wrapperStyle={{ paddingTop: '30px' }} 
+            iconType="circle"
+            payload={sortedResults.map(item => ({
+              id: item.term,
+              type: 'circle',
+              value: item.term.toUpperCase(),
+              color: CHART_COLORS[item.originalIndex % CHART_COLORS.length]
+            }))}
+          />
+
+          {sortedResults.map((item) => {
+            const lineData = [...item.left_nodes, ...item.right_nodes].map(node => ({
+              x: node[0],
+              y: node[1]
+            }));
+
+            return (
+              <Line
+                key={item.term}
+                data={lineData}
+                type="linear"
+                dataKey="y"
+                name={item.term.toUpperCase()}
+                stroke={CHART_COLORS[item.originalIndex % CHART_COLORS.length]}
+                strokeWidth={4}
+                dot={{ r: 5, strokeWidth: 2, fill: '#fff' }}
+                activeDot={{ r: 8 }}
+                isAnimationActive={true}
+                animationDuration={1500}
+              />
+            );
+          })}
+        </LineChart>
+      </ResponsiveContainer>
+    </div>
+  );
+};
+
+export default Step3FinalGraph;

frontend/src/config.js

@@ -1 +1,6 @@
-export const API_BASE_URL = import.meta.env.VITE_API_URL;
+export const API_BASE_URL = import.meta.env.VITE_API_URL;
+
+export const CHART_COLORS = [
+  '#ef4444', '#f59e0b', '#10b981', '#3b82f6', 
+  '#d946ef', '#06b6d4', '#8b5cf6', '#f43f5e', '#6366f1'
+];

frontend/src/pages/DocEditor.jsx

@@ -1,8 +1,9 @@
-import React, { useState } from 'react';
+import { useState } from 'react';
 import Step1BaseScale from '../components/editor/Step1BaseScale';
 import Step2FuzzyModeling from '../components/editor/Step2FuzzyModeling';
 import SubscaleModal from '../components/editor/SubscaleModal';
 import { calculateValueFunction, buildFuzzyGraph } from '../services/docService';
+import Step3FinalGraph from '../components/editor/Step3FinalGraph';
 
 export default function DocEditor() {
   const [step, setStep] = useState(1); 
@@ -125,20 +126,26 @@ export default function DocEditor() {
         const mf = mfDefinitions[term];
         const sub = subscales[term] || {};
         
+        const c_start = Number(mf.coreStart.toFixed(4));
+        const c_end = Number(mf.coreEnd.toFixed(4));
+        
+        const s_start = Math.min(Number(mf.supportStart.toFixed(4)), c_start);
+        const s_end = Math.max(Number(mf.supportEnd.toFixed(4)), c_end);
+
         const leftCount = sub.left ? sub.left.cardsCount : 2;
         const left_nodes_x = Array.from({ length: leftCount }).map((_, i) => 
-          Number((mf.supportStart + (mf.coreStart - mf.supportStart) * (i / (leftCount - 1))).toFixed(4))
+          Number((s_start + (c_start - s_start) * (i / (leftCount - 1))).toFixed(4))
         );
 
         const rightCount = sub.right ? sub.right.cardsCount : 2;
         const right_nodes_x = Array.from({ length: rightCount }).map((_, i) => 
-          Number((mf.coreEnd + (mf.supportEnd - mf.coreEnd) * (i / (rightCount - 1))).toFixed(4))
+          Number((c_end + (s_end - c_end) * (i / (rightCount - 1))).toFixed(4))
         );
 
         return {
           term: term,
-          core: [ Number(mf.coreStart.toFixed(4)), Number(mf.coreEnd.toFixed(4)) ],
-          support: [ Number(mf.supportStart.toFixed(4)), Number(mf.supportEnd.toFixed(4)) ],
+          core: [ c_start, c_end ],
+          support: [ s_start, s_end ],
           left_nodes_x: left_nodes_x,
           left_blank_cards: sub.left ? sub.left.blankCards : [0],
           right_nodes_x: right_nodes_x,
@@ -187,13 +194,16 @@ export default function DocEditor() {
         />
       )}
 
-      {step === 3 && (
-        <div className="w-full bg-white p-6 rounded-2xl shadow-sm border border-slate-200 flex flex-col items-center">
-           <h2 className="text-2xl font-bold text-slate-800 mb-4">Paso 3: Espectro Difuso Final</h2>
-           <p className="text-slate-600 mb-6">Gráfica construida correctamente. ¡Mira la consola!</p>
-           <button onClick={() => setStep(2)} className="text-slate-500 hover:text-blue-600 underline">
-             ← Volver a editar
-           </button>
+      {step === 3 && finalResult && (
+        <div className="flex flex-col gap-6 w-full">
+          <Step3FinalGraph data={finalResult} />
+
+          <button 
+            onClick={() => console.log("Lógica para guardar")}
+            className="mt-4 px-8 py-3 bg-blue-600 text-white font-bold rounded-xl shadow-md hover:bg-blue-700 w-fit self-end transition-all"
+          >
+            Finalizar y Guardar
+          </button>
         </div>
       )}