Goals por categoría: ámbito de categoría en objetivos (build 88) #46

Un Goal ya podía acotarse por cuenta; ahora también por categoría de
fuente, de modo que se puede fijar "100.000 € en Cash" y que el progreso
cuente solo las fuentes de esa categoría.

- CoreData: relación Goal.category ↔ Category.goals (opcional, Nullify)
- Goal.includes(_:)/relevantSources(from:)/scopeKey centralizan el filtro
  de ámbito (cuenta Y categoría) que antes estaba duplicado en
  GoalsViewModel, AddSourceView y NotificationService
- GoalEditorView: sección "Ámbito" con selector de categoría
- Chip de categoría en la lista de Goals y en la tarjeta del Dashboard
- ETA del Dashboard para goals con ámbito: usa la proyección del propio
  goal en vez de la evolución global de la cartera (que daría "objetivo
  alcanzado" en cuanto la cartera total superara el importe)
- GoalRepository e ImportService deduplican por (nombre, cuenta, categoría)
- Export/Import de goals incluye "category"
- Nuevas claves localizadas en los 7 idiomas

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YcDn5ccuRFV83q7xWWokBT

PortfolioJournal/Models/CoreData/Category+CoreDataClass.swift

@@ -28,6 +28,7 @@ public class Category: NSManagedObject, Identifiable {
     @NSManaged public var createdAt: Date
     @NSManaged public var allocationTarget: NSNumber?
     @NSManaged public var sources: NSSet?
+    @NSManaged public var goals: NSSet?
 
     public override func awakeFromInsert() {
         super.awakeFromInsert()
@@ -43,6 +44,13 @@ public class Category: NSManagedObject, Identifiable {
 // MARK: - Computed Properties
 
 extension Category {
+    /// Nil-safe identifier that never heals a deleted object, mirroring
+    /// `Account.safeId`. Use it when comparing identities across fetches.
+    var safeId: UUID? {
+        guard !isDeleted else { return nil }
+        return value(forKey: "id") as? UUID
+    }
+
     var color: Color {
         Color(hex: colorHex) ?? .blue
     }

PortfolioJournal/Models/CoreData/Goal+CoreDataClass.swift

@@ -26,6 +26,7 @@ public class Goal: NSManagedObject, Identifiable {
         set { setManagedValue(newValue, forKey: "createdAt") }
     }
     @NSManaged public var account: Account?
+    @NSManaged public var category: Category?
 
     public override func awakeFromInsert() {
         super.awakeFromInsert()
@@ -42,5 +43,32 @@ extension Goal {
     var targetDecimal: Decimal {
         targetAmount?.decimalValue ?? Decimal.zero
     }
+
+    /// A goal may be scoped to an account, to a source category (e.g. "100k in
+    /// Cash"), to both, or to nothing at all (the whole portfolio). `account`
+    /// and `category` act as AND filters over the sources that count towards it.
+    func includes(_ source: InvestmentSource) -> Bool {
+        if let accountId = account?.safeId, source.account?.id != accountId {
+            return false
+        }
+        if let categoryId = category?.safeId, source.category?.id != categoryId {
+            return false
+        }
+        return true
+    }
+
+    /// Sources whose value counts towards this goal.
+    func relevantSources(from sources: [InvestmentSource]) -> [InvestmentSource] {
+        guard account != nil || category != nil else { return sources }
+        return sources.filter { includes($0) }
+    }
+
+    /// Stable key identifying the scope (account + category) of a goal, so
+    /// goals sharing a scope can share cached evolution data.
+    var scopeKey: String {
+        let accountPart = account?.safeId?.uuidString ?? "all"
+        let categoryPart = category?.safeId?.uuidString ?? "all"
+        return "\(accountPart)|\(categoryPart)"
+    }
 }
 

PortfolioJournal/Models/CoreData/PortfolioJournal.xcdatamodeld/PortfolioJournal.xcdatamodel/contents

@@ -32,6 +32,7 @@
         <attribute name="id" optional="YES" attributeType="UUID" usesScalarValueType="NO"/>
         <attribute name="name" attributeType="String" defaultValueString=""/>
         <attribute name="sortOrder" attributeType="Integer 16" defaultValueString="0" usesScalarValueType="YES"/>
+        <relationship name="goals" optional="YES" toMany="YES" deletionRule="Nullify" destinationEntity="Goal" inverseName="category" inverseEntity="Goal"/>
         <relationship name="sources" optional="YES" toMany="YES" deletionRule="Nullify" destinationEntity="InvestmentSource" inverseName="category" inverseEntity="InvestmentSource"/>
     </entity>
     <entity name="InvestmentSource" representedClassName="InvestmentSource" syncable="YES">
@@ -76,6 +77,7 @@
         <attribute name="targetAmount" optional="YES" attributeType="Decimal"/>
         <attribute name="targetDate" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
         <relationship name="account" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="Account" inverseName="goals" inverseEntity="Account"/>
+        <relationship name="category" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="Category" inverseName="goals" inverseEntity="Category"/>
     </entity>
     <entity name="PredictionCache" representedClassName="PredictionCache" syncable="NO">
         <attribute name="algorithm" attributeType="String" defaultValueString="linear"/>