fix: resolve Swift phase-1 init errors in WorkoutViewModel

Using self.programs on the RHS of activeSections assignment violated
Swift's two-phase init rule (self is partially initialized). Use local
`migrated` array instead, then assign programs and activeSections in
the correct order.

KisaniCal/Models/ExerciseModels.swift

@@ -190,13 +190,14 @@ class WorkoutViewModel: ObservableObject {
            let saved = try? JSONDecoder().decode([WorkoutProgram].self, from: data),
            !saved.isEmpty {
 
-            let gamifiedEmojis: Set<String> = ["🔥", "💥"]
             let emojiMap = ["🔥": "🔄", "💥": "🏋️"]
-            let needsMigration = saved.contains(where: { gamifiedEmojis.contains($0.emoji) })
-            programs = needsMigration ? saved.map { p in
-                guard let replacement = emojiMap[p.emoji] else { return p }
-                var copy = p; copy.emoji = replacement; return copy
-            } : saved
+            let needsMigration = saved.contains(where: { emojiMap[$0.emoji] != nil })
+            let migrated: [WorkoutProgram] = needsMigration
+                ? saved.map { p in
+                    guard let rep = emojiMap[p.emoji] else { return p }
+                    var copy = p; copy.emoji = rep; return copy
+                  }
+                : saved
 
             var sched: [Int: UUID] = [:]
             if let dict = UserDefaults.standard.dictionary(forKey: Self.kSchedule) as? [String: String] {
@@ -211,7 +212,9 @@ class WorkoutViewModel: ObservableObject {
                let uid = UUID(uuidString: str),
                saved.contains(where: { $0.id == uid }) { pid = uid }
             activeProgramId = pid
-            activeSections  = programs.first { $0.id == pid }?.sections ?? programs[0].sections
+            // Use local `migrated` (not self.programs) — self is partially initialized here
+            programs       = migrated
+            activeSections = migrated.first { $0.id == pid }?.sections ?? migrated[0].sections
 
             if needsMigration { save() }