Sistema de códigos jerárquicos 2-niveles + asignación determinista post-IA

- hierarchy.ts: Spike (S) agregado, buildHierarchyPath genera [E01-F04] (2 niveles)
  Legacy [E05-F04-U01] preservado (regex opcional 3er segmento)
- hierarchy-generator.ts (nuevo): analyzeExisting() computa contadores por épica+tipo
  assignEpicCodes() asigna E{max+1} secuencial
  assignItemCodes() asigna {epic}-{tipo}{n+1} a cada HU dentro de su épica
- project-analyzer.ts: post-procesa épicas y HUs con generador de códigos
  saveEpicDrafts usa epicCode en metadata y título con [E01]
- prompts-db.ts: prompt FASE 2 instruye a la IA a no generar códigos
- workitems.ts: EnrichedEpic._epicCode, EnrichedUserStory._epicCode/_itemCode
- DashboardView: muestra códigos en drafts y tabla de épicas

src/services/hierarchy.ts

@@ -1,10 +1,9 @@
-export type ItemType = 'E' | 'F' | 'U' | 'T' | 'B'
+export type ItemType = 'E' | 'F' | 'U' | 'T' | 'B' | 'S'
 
 export interface HierarchyInfo {
   fullPath: string
   items: { type: ItemType; number: number }[]
   epicCode: string | null
-  featureCode: string | null
   itemCode: string | null
 }
 
@@ -14,6 +13,7 @@ const TYPE_LABELS: Record<ItemType, string> = {
   U: 'HU',
   T: 'Tarea',
   B: 'Bug',
+  S: 'Spike',
 }
 
 const TYPE_COLORS: Record<ItemType, string> = {
@@ -22,6 +22,7 @@ const TYPE_COLORS: Record<ItemType, string> = {
   U: 'bg-emerald-100 text-emerald-700 dark:bg-emerald-900/30 dark:text-emerald-400',
   T: 'bg-amber-100 text-amber-700 dark:bg-amber-900/30 dark:text-amber-400',
   B: 'bg-rose-100 text-rose-700 dark:bg-rose-900/30 dark:text-rose-400',
+  S: 'bg-cyan-100 text-cyan-700 dark:bg-cyan-900/30 dark:text-cyan-400',
 }
 
 const TYPE_ICONS: Record<ItemType, string> = {
@@ -30,6 +31,7 @@ const TYPE_ICONS: Record<ItemType, string> = {
   U: '📋',
   T: '⚙️',
   B: '🐛',
+  S: '🔬',
 }
 
 export function getTypeLabel(type: ItemType): string {
@@ -44,7 +46,7 @@ export function getTypeIcon(type: ItemType): string {
   return TYPE_ICONS[type] || '📄'
 }
 
-const HIERARCHY_REGEX = /\[(([EFUTB]\d+)(?:-([EFUTB]\d+))?(?:-([EFUTB]\d+))?)\]/i
+const HIERARCHY_REGEX = /\[(([EFUTBS]\d+)(?:-([EFUTBS]\d+))?(?:-([EFUTBS]\d+))?)\]/i
 
 export function parseHierarchy(title: string): HierarchyInfo | null {
   const match = title.match(HIERARCHY_REGEX)
@@ -61,15 +63,12 @@ export function parseHierarchy(title: string): HierarchyInfo | null {
   }))
 
   const epic = items.find(i => i.type === 'E')
-  const feature = items.find(i => i.type === 'F')
-  const item = items[items.length - 1]
 
   return {
     fullPath,
     items,
     epicCode: epic ? `E${String(epic.number).padStart(2, '0')}` : null,
-    featureCode: feature ? `F${String(feature.number).padStart(2, '0')}` : null,
-    itemCode: item ? `${item.type}${String(item.number).padStart(2, '0')}` : null,
+    itemCode: items.length > 1 ? `${items[1].type}${String(items[1].number).padStart(2, '0')}` : null,
   }
 }
 
@@ -85,25 +84,24 @@ export function getItemType(title: string): ItemType {
 
 export function buildHierarchyPath(
   epicNum?: number,
-  featureNum?: number,
   itemType?: ItemType,
   itemNum?: number,
 ): string {
-  const parts: string[] = []
-  if (epicNum !== undefined) parts.push(`E${String(epicNum).padStart(2, '0')}`)
-  if (featureNum !== undefined) parts.push(`F${String(featureNum).padStart(2, '0')}`)
-  if (itemType && itemNum !== undefined) parts.push(`${itemType}${String(itemNum).padStart(2, '0')}`)
-  return parts.length ? `[${parts.join('-')}]` : ''
+  if (epicNum === undefined) return ''
+  const parts: string[] = [`E${String(epicNum).padStart(2, '0')}`]
+  if (itemType && itemNum !== undefined) {
+    parts.push(`${itemType}${String(itemNum).padStart(2, '0')}`)
+  }
+  return `[${parts.join('-')}]`
 }
 
 export function buildFullTitle(
   name: string,
   epicNum?: number,
-  featureNum?: number,
   itemType?: ItemType,
   itemNum?: number,
 ): string {
-  const path = buildHierarchyPath(epicNum, featureNum, itemType, itemNum)
+  const path = buildHierarchyPath(epicNum, itemType, itemNum)
   return path ? `${path} ${name}` : name
 }