Add localization infrastructure and Simplified Chinese translation

Project.swift

@@ -22,6 +22,8 @@ let appResources: ResourceFileElements = [
   "supacode/AppIcon.icon",
   "supacode/Assets.xcassets",
   "supacode/notification.wav",
+  "supacode/Resources/Localizable.xcstrings",
+  "supacode/Resources/InfoPlist.xcstrings",
 ]
 
 let appBuildableFolders: [BuildableFolder] = [
@@ -234,6 +236,8 @@ let project = Project(
       settings: .settings(
         base: [
           "SWIFT_DEFAULT_ACTOR_ISOLATION": "MainActor",
+          // Extract SwiftUI LocalizedStringKey literals into Localizable.xcstrings at build time.
+          "SWIFT_EMIT_LOC_STRINGS": "YES",
         ],
         defaultSettings: .essential
       )
@@ -257,6 +261,8 @@ let project = Project(
       settings: .settings(
         base: [
           "SWIFT_DEFAULT_ACTOR_ISOLATION": "MainActor",
+          // Extract SwiftUI LocalizedStringKey literals into Localizable.xcstrings at build time.
+          "SWIFT_EMIT_LOC_STRINGS": "YES",
         ],
         defaultSettings: .essential
       )
@@ -303,6 +309,8 @@ let project = Project(
           "ENABLE_HARDENED_RUNTIME": "YES",
           "LD_RUNPATH_SEARCH_PATHS": "$(inherited) @executable_path/../Frameworks",
           "OTHER_LDFLAGS": "$(inherited) -lc++",
+          // Extract SwiftUI LocalizedStringKey literals into Localizable.xcstrings at build time.
+          "SWIFT_EMIT_LOC_STRINGS": "YES",
         ],
         debug: [
           "CODE_SIGN_ENTITLEMENTS": "supacode/supacodeDebug.entitlements",

SupacodeSettingsFeature/Views/RepositoryScriptsSettingsView.swift

@@ -21,27 +21,27 @@ public struct RepositoryScriptsSettingsView: View {
         if store.isGitRepository {
           LifecycleScriptSection(
             text: $store.settings.setupScript,
-            title: "Setup Script",
-            subtitle: "Runs once after worktree creation.",
+            title: String(localized: "Setup Script"),
+            subtitle: String(localized: "Runs once after worktree creation."),
             icon: "truck.box.badge.clock",
             iconColor: .blue,
             footerExample: "pnpm install"
           )
           LifecycleScriptSection(
             text: $store.settings.archiveScript,
-            title: "Archive Script",
-            subtitle: "Runs before a worktree is archived.",
+            title: String(localized: "Archive Script"),
+            subtitle: String(localized: "Runs before a worktree is archived."),
             icon: "archivebox",
             iconColor: .orange,
             footerExample: "docker compose down"
           )
         }
         LifecycleScriptSection(
           text: $store.settings.deleteScript,
-          title: "Delete Script",
+          title: String(localized: "Delete Script"),
           subtitle: store.isGitRepository
-            ? "Runs before a worktree is deleted."
-            : "Runs before this folder is removed from Supacode.",
+            ? String(localized: "Runs before a worktree is deleted.")
+            : String(localized: "Runs before this folder is removed from Supacode."),
           icon: "trash",
           iconColor: .red,
           footerExample: "docker compose down"

SupacodeSettingsShared/Domain/AutomatedActionPolicy.swift

@@ -1,3 +1,5 @@
+import Foundation
+
 /// Controls when automated actions (CLI commands, deeplinks) bypass
 /// user confirmation.
 public enum AutomatedActionPolicy: String, Codable, Equatable, Sendable, CaseIterable {
@@ -13,10 +15,10 @@ public enum AutomatedActionPolicy: String, Codable, Equatable, Sendable, CaseIte
   /// Human-readable label for the settings picker.
   public var displayName: String {
     switch self {
-    case .always: "Always"
-    case .cliOnly: "CLI Only"
-    case .deeplinksOnly: "Deeplinks Only"
-    case .never: "Never"
+    case .always: String(localized: "Always")
+    case .cliOnly: String(localized: "CLI Only")
+    case .deeplinksOnly: String(localized: "Deeplinks Only")
+    case .never: String(localized: "Never")
     }
   }
 

SupacodeSettingsShared/Domain/OpenWorktreeAction.swift

@@ -100,7 +100,7 @@ public enum OpenWorktreeAction: CaseIterable, Identifiable {
 
   public var title: String {
     switch self {
-    case .finder: "Reveal in Finder"
+    case .finder: String(localized: "Reveal in Finder")
     case .editor: "$EDITOR"
     case .alacritty: "Alacritty"
     case .androidStudio: "Android Studio"

SupacodeSettingsShared/Models/AppearanceMode.swift

@@ -12,11 +12,11 @@ public enum AppearanceMode: String, CaseIterable, Identifiable, Codable, Sendabl
   public var title: String {
     switch self {
     case .system:
-      return "Auto"
+      return String(localized: "Auto")
     case .light:
-      return "Light"
+      return String(localized: "Light")
     case .dark:
-      return "Dark"
+      return String(localized: "Dark")
     }
   }
 

SupacodeSettingsShared/Models/ConfirmQuitMode.swift

@@ -17,20 +17,20 @@ public nonisolated enum ConfirmQuitMode: String, Codable, CaseIterable, Sendable
 
   public var label: String {
     switch self {
-    case .auto: "Auto"
-    case .always: "Always"
-    case .never: "Never"
+    case .auto: String(localized: "Auto")
+    case .always: String(localized: "Always")
+    case .never: String(localized: "Never")
     }
   }
 
   public var subtitle: String {
     switch self {
     case .auto:
-      return "Confirm only when scripts are running or a worktree is being set up, archived, or deleted."
+      return String(localized: "Confirm only when scripts are running or a worktree is being set up, archived, or deleted.")
     case .always:
-      return "Always confirm before quitting."
+      return String(localized: "Always confirm before quitting.")
     case .never:
-      return "Quit immediately without confirmation."
+      return String(localized: "Quit immediately without confirmation.")
     }
   }
 }

SupacodeSettingsShared/Models/GlobalSettings.swift

@@ -1,3 +1,5 @@
+import Foundation
+
 public nonisolated enum AutoDeletePeriod: Int, Codable, CaseIterable, Comparable, Sendable {
   #if DEBUG
     case immediately = 0
@@ -11,13 +13,13 @@ public nonisolated enum AutoDeletePeriod: Int, Codable, CaseIterable, Comparable
   public var label: String {
     switch self {
     #if DEBUG
-      case .immediately: "Immediately (debug)"
+      case .immediately: String(localized: "Immediately (debug)")
     #endif
-    case .oneDay: "After 1 day"
-    case .threeDays: "After 3 days"
-    case .sevenDays: "After 7 days"
-    case .fourteenDays: "After 14 days"
-    case .thirtyDays: "After 30 days"
+    case .oneDay: String(localized: "After 1 day")
+    case .threeDays: String(localized: "After 3 days")
+    case .sevenDays: String(localized: "After 7 days")
+    case .fourteenDays: String(localized: "After 14 days")
+    case .thirtyDays: String(localized: "After 30 days")
     }
   }
 

SupacodeSettingsShared/Models/MergedWorktreeAction.swift

@@ -14,8 +14,8 @@ public nonisolated enum MergedWorktreeAction: String, CaseIterable, Codable, Equ
 
   public var title: String {
     switch self {
-    case .archive: return "Archive"
-    case .delete: return "Delete"
+    case .archive: return String(localized: "Archive")
+    case .delete: return String(localized: "Delete")
     }
   }
 }

SupacodeSettingsShared/Models/NotificationSound.swift

@@ -83,7 +83,7 @@ public enum NotificationSound: String, CaseIterable, Identifiable, Codable, Send
   public var displayName: String {
     switch self {
     case .never:
-      return "Never"
+      return String(localized: "Never")
     case .supacodeClassic:
       return "Supacode Classic"
     default:

SupacodeSettingsShared/Models/PullRequestMergeStrategy.swift

@@ -10,11 +10,11 @@ public nonisolated enum PullRequestMergeStrategy: String, CaseIterable, Codable,
   public var title: String {
     switch self {
     case .merge:
-      return "Merge"
+      return String(localized: "Merge")
     case .squash:
-      return "Squash"
+      return String(localized: "Squash")
     case .rebase:
-      return "Rebase"
+      return String(localized: "Rebase")
     }
   }
 

SupacodeSettingsShared/Models/RepositoryColor.swift

@@ -97,13 +97,13 @@ public nonisolated enum RepositoryColor: Hashable, Sendable, Codable {
   /// Tooltip label used by `ColorSwatchRow`'s predefined swatches.
   public var displayName: String {
     switch self {
-    case .red: "Red"
-    case .orange: "Orange"
-    case .yellow: "Yellow"
-    case .green: "Green"
-    case .teal: "Teal"
-    case .blue: "Blue"
-    case .purple: "Purple"
+    case .red: String(localized: "Red")
+    case .orange: String(localized: "Orange")
+    case .yellow: String(localized: "Yellow")
+    case .green: String(localized: "Green")
+    case .teal: String(localized: "Teal")
+    case .blue: String(localized: "Blue")
+    case .purple: String(localized: "Purple")
     case .custom(let hex): hex
     }
   }

SupacodeSettingsShared/Models/ScriptKind.swift

@@ -14,12 +14,12 @@ public enum ScriptKind: String, Codable, CaseIterable, Hashable, Sendable {
   /// Default display name shown in UI when the user hasn't provided one.
   public nonisolated var defaultName: String {
     switch self {
-    case .run: "Run"
-    case .test: "Test"
-    case .deploy: "Deploy"
-    case .lint: "Lint"
-    case .format: "Format"
-    case .custom: "Custom"
+    case .run: String(localized: "Run")
+    case .test: String(localized: "Test")
+    case .deploy: String(localized: "Deploy")
+    case .lint: String(localized: "Lint")
+    case .format: String(localized: "Format")
+    case .custom: String(localized: "Custom")
     }
   }