Añadidos endpoints de validación, organización del backend en subcarpetas y archivos y añadido el control de errores http.

backend/api/services/docmf_build_service.py

@@ -0,0 +1,37 @@
+def build_docmf(request):
+    a, b = request.core
+    c, d = request.support
+
+    # LEFT
+    TL = sum(e + 1 for e in request.left_blank_cards)
+    YL = 1 / TL
+    left_nodes = []
+    acc = 0
+
+    for i, x in enumerate(request.left_nodes_x):
+        if i == 0:
+            left_nodes.append((x, 0.0))
+        else:
+            acc += request.left_blank_cards[i-1] + 1
+            left_nodes.append((x, round(acc * YL, 4)))
+
+    # RIGHT
+    TR = sum(e + 1 for e in request.right_blank_cards)
+    YR = 1 / TR
+    right_nodes = []
+    acc = 0
+
+    for i, x in enumerate(request.right_nodes_x):
+        if i == 0:
+            right_nodes.append((x, 1.0))
+        else:
+            acc += request.right_blank_cards[i-1] + 1
+            right_nodes.append((x, round(1 - acc * YR, 4)))
+
+    return {
+        "term": request.term,
+        "core": request.core,
+        "support": request.support,
+        "left_nodes": left_nodes,
+        "right_nodes": right_nodes
+    }