fix: PromptHistoryのUserDefaultsキーをConfig.PromptHistory.keyに共通化

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: nyanko3141592

Core/Sources/Core/Configs/StringConfigItem.swift

@@ -56,7 +56,7 @@ extension Config {
     }
 
     /// プロンプト履歴（JSON形式で保存）
-    struct PromptHistory: StringConfigItem {
-        static let key: String = "dev.ensan.inputmethod.azooKeyMac.preference.PromptHistory"
+    public struct PromptHistory: StringConfigItem {
+        public static let key: String = "dev.ensan.inputmethod.azooKeyMac.preference.PromptHistory"
     }
 }

azooKeyMac/InputController/azooKeyMacInputController.swift

@@ -63,7 +63,7 @@ class azooKeyMacInputController: IMKInputController, NSMenuItemValidation { // s
 
     /// ピン留めプロンプトのキャッシュを更新
     func reloadPinnedPromptsCache() {
-        guard let data = UserDefaults.standard.data(forKey: "dev.ensan.inputmethod.azooKeyMac.preference.PromptHistory"),
+        guard let data = UserDefaults.standard.data(forKey: Config.PromptHistory.key),
               let history = try? JSONDecoder().decode([PromptHistoryItem].self, from: data) else {
             self.pinnedPromptsCache = []
             return

azooKeyMac/Windows/PromptInput/PromptInputView.swift

@@ -445,7 +445,7 @@ struct PromptInputView: View {
 
     private func loadPromptHistory() {
         // Try to load as Data first (new format)
-        if let data = UserDefaults.standard.data(forKey: "dev.ensan.inputmethod.azooKeyMac.preference.PromptHistory") {
+        if let data = UserDefaults.standard.data(forKey: Config.PromptHistory.key) {
             if let history = try? JSONDecoder().decode([PromptHistoryItem].self, from: data) {
                 promptHistory = history
                 return
@@ -458,7 +458,7 @@ struct PromptInputView: View {
         }
 
         // Fallback to string format (legacy)
-        let historyString = UserDefaults.standard.string(forKey: "dev.ensan.inputmethod.azooKeyMac.preference.PromptHistory") ?? ""
+        let historyString = UserDefaults.standard.string(forKey: Config.PromptHistory.key) ?? ""
         if !historyString.isEmpty,
            let data = historyString.data(using: .utf8) {
             if let history = try? JSONDecoder().decode([PromptHistoryItem].self, from: data) {
@@ -549,7 +549,7 @@ struct PromptInputView: View {
 
     private func savePinnedHistory() {
         if let data = try? JSONEncoder().encode(promptHistory) {
-            UserDefaults.standard.set(data, forKey: "dev.ensan.inputmethod.azooKeyMac.preference.PromptHistory")
+            UserDefaults.standard.set(data, forKey: Config.PromptHistory.key)
         }
     }