Sprint 2 Etapas 1-2: modelo recursos utilizationMinutes+units, Dexie v3, ActivityPanel wow

src/domain/schemas.ts

@@ -10,7 +10,8 @@ export const ResourceSchema = z.object({
 
 export const ActivityResourceAssignmentSchema = z.object({
   resourceId: z.string().uuid(),
-  utilizationPercent: z.number().min(0).max(1),
+  utilizationMinutes: z.number().min(0, 'Los minutos no pueden ser negativos'),
+  units: z.number().int().min(1, 'Las unidades deben ser al menos 1').default(1),
 })
 
 export const ActivitySchema = z.object({

src/domain/simulation.ts

@@ -207,7 +207,7 @@ export function runSimulation(input: SimulationInput): SimulationResult {
     for (const assignment of activity.assignedResources) {
       const resource = resources.get(assignment.resourceId)
       if (!resource) continue
-      const hoursUsed = (executionTimeMinutes / 60) * assignment.utilizationPercent
+      const hoursUsed = (assignment.utilizationMinutes / 60) * assignment.units
       const cost = resource.costPerHour * hoursUsed * execProb
       resourceBreakdown.push({ resourceId: resource.id, resourceName: resource.name, cost })
       resourceCostDirect += cost
@@ -215,7 +215,7 @@ export function runSimulation(input: SimulationInput): SimulationResult {
       const prev = resourceTotals.get(resource.id) ?? { cost: 0, minutes: 0, name: resource.name }
       resourceTotals.set(resource.id, {
         cost: prev.cost + cost,
-        minutes: prev.minutes + activity.executionTimeMinutes * assignment.utilizationPercent * execProb,
+        minutes: prev.minutes + assignment.utilizationMinutes * assignment.units * execProb,
         name: resource.name,
       })
     }

src/domain/types.ts

@@ -36,7 +36,8 @@ export interface Activity {
 
 export interface ActivityResourceAssignment {
   resourceId: UUID
-  utilizationPercent: number
+  utilizationMinutes: number  // minutos que este recurso dedica por ejecución (independiente del tiempo de la actividad)
+  units: number               // cantidad de unidades del recurso (ej: 2 impresoras). Default: 1.
 }
 
 export type GatewayType = 'exclusive' | 'parallel' | 'inclusive' | 'event-based'