feat(import): add import-only option for recipes without downloading missing LoRAs

Add dual-button design in recipe import flow:
- Details step: [Import Recipe Only] [Import & Download]
- Location step: [Back] [Import & Download] (removed redundant Import Only)

Changes:
- templates/components/import_modal.html: Add secondary button for import-only
- static/js/managers/ImportManager.js: Add saveRecipeOnlyFromDetails() method
- static/js/managers/import/RecipeDataManager.js: Update button state management
- static/js/managers/import/DownloadManager.js: Support skipDownload flag
- locales/*.json: Complete all translation TODOs

Closes #868

locales/zh-TW.json

@@ -645,6 +645,8 @@
                 "root": "根目錄",
                 "browseFolders": "瀏覽資料夾：",
                 "downloadAndSaveRecipe": "下載並儲存配方",
+                "importRecipeOnly": "僅匯入配方",
+                "importAndDownload": "匯入並下載",
                 "downloadMissingLoras": "下載缺少的 LoRA",
                 "saveRecipe": "儲存配方",
                 "loraCountInfo": "（庫存 {existing}/{total}）",
@@ -732,61 +734,61 @@
             }
         },
         "batchImport": {
-            "title": "[TODO: Translate] Batch Import Recipes",
-            "action": "[TODO: Translate] Batch Import",
-            "urlList": "[TODO: Translate] URL List",
-            "directory": "[TODO: Translate] Directory",
-            "urlDescription": "[TODO: Translate] Enter image URLs or local file paths (one per line). Each will be imported as a recipe.",
-            "directoryDescription": "[TODO: Translate] Enter a directory path to import all images from that folder.",
-            "urlsLabel": "[TODO: Translate] Image URLs or Local Paths",
-            "urlsPlaceholder": "[TODO: Translate] https://civitai.com/images/...\nhttps://civitai.com/images/...\nC:/path/to/image.png\n...",
-            "urlsHint": "[TODO: Translate] Enter one URL or path per line",
-            "directoryPath": "[TODO: Translate] Directory Path",
-            "directoryPlaceholder": "[TODO: Translate] /path/to/images/folder",
-            "browse": "[TODO: Translate] Browse",
-            "recursive": "[TODO: Translate] Include subdirectories",
-            "tagsOptional": "[TODO: Translate] Tags (optional, applied to all recipes)",
-            "tagsPlaceholder": "[TODO: Translate] Enter tags separated by commas",
-            "tagsHint": "[TODO: Translate] Tags will be added to all imported recipes",
-            "skipNoMetadata": "[TODO: Translate] Skip images without metadata",
-            "skipNoMetadataHelp": "[TODO: Translate] Images without LoRA metadata will be skipped automatically.",
-            "start": "[TODO: Translate] Start Import",
-            "startImport": "[TODO: Translate] Start Import",
-            "importing": "[TODO: Translate] Importing...",
-            "progress": "[TODO: Translate] Progress",
-            "total": "[TODO: Translate] Total",
-            "success": "[TODO: Translate] Success",
-            "failed": "[TODO: Translate] Failed",
-            "skipped": "[TODO: Translate] Skipped",
-            "current": "[TODO: Translate] Current",
-            "currentItem": "[TODO: Translate] Current",
-            "preparing": "[TODO: Translate] Preparing...",
-            "cancel": "[TODO: Translate] Cancel",
-            "cancelImport": "[TODO: Translate] Cancel",
-            "cancelled": "[TODO: Translate] Import cancelled",
-            "completed": "[TODO: Translate] Import completed",
-            "completedWithErrors": "[TODO: Translate] Completed with errors",
-            "completedSuccess": "[TODO: Translate] Successfully imported {count} recipe(s)",
-            "successCount": "[TODO: Translate] Successful",
-            "failedCount": "[TODO: Translate] Failed",
-            "skippedCount": "[TODO: Translate] Skipped",
-            "totalProcessed": "[TODO: Translate] Total processed",
-            "viewDetails": "[TODO: Translate] View Details",
-            "newImport": "[TODO: Translate] New Import",
-            "manualPathEntry": "[TODO: Translate] Please enter the directory path manually. File browser is not available in this browser.",
-            "batchImportDirectorySelected": "[TODO: Translate] Directory selected: {name}. You may need to enter the full path manually.",
-            "batchImportManualEntryRequired": "[TODO: Translate] File browser not available. Please enter the directory path manually.",
-            "backToParent": "[TODO: Translate] Back to parent directory",
-            "folders": "[TODO: Translate] Folders",
-            "folderCount": "[TODO: Translate] {count} folders",
-            "imageFiles": "[TODO: Translate] Image Files",
-            "images": "[TODO: Translate] images",
-            "imageCount": "[TODO: Translate] {count} images",
-            "selectFolder": "[TODO: Translate] Select This Folder",
+            "title": "批量匯入配方",
+            "action": "批量匯入",
+            "urlList": "URL 列表",
+            "directory": "目錄",
+            "urlDescription": "輸入圖像 URL 或本地檔案路徑（每行一個）。每個都將作為配方匯入。",
+            "directoryDescription": "輸入目錄路徑以匯入該資料夾中的所有圖像。",
+            "urlsLabel": "圖像 URL 或本地路徑",
+            "urlsPlaceholder": "https://civitai.com/images/...\nhttps://civitai.com/images/...\nC:/path/to/image.png\n...",
+            "urlsHint": "每行輸入一個 URL 或路徑",
+            "directoryPath": "目錄路徑",
+            "directoryPlaceholder": "/path/to/images/folder",
+            "browse": "瀏覽",
+            "recursive": "包含子目錄",
+            "tagsOptional": "標籤（可選，應用於所有配方）",
+            "tagsPlaceholder": "輸入以逗號分隔的標籤",
+            "tagsHint": "標籤將被添加到所有匯入的配方中",
+            "skipNoMetadata": "跳過無元資料的圖像",
+            "skipNoMetadataHelp": "沒有 LoRA 元資料的圖像將被自動跳過。",
+            "start": "開始匯入",
+            "startImport": "開始匯入",
+            "importing": "匯入中...",
+            "progress": "進度",
+            "total": "總計",
+            "success": "成功",
+            "failed": "失敗",
+            "skipped": "跳過",
+            "current": "當前",
+            "currentItem": "當前項目",
+            "preparing": "準備中...",
+            "cancel": "取消",
+            "cancelImport": "取消匯入",
+            "cancelled": "匯入已取消",
+            "completed": "匯入完成",
+            "completedWithErrors": "匯入完成但有錯誤",
+            "completedSuccess": "成功匯入 {count} 個配方",
+            "successCount": "成功",
+            "failedCount": "失敗",
+            "skippedCount": "跳過",
+            "totalProcessed": "總計處理",
+            "viewDetails": "查看詳情",
+            "newImport": "新建匯入",
+            "manualPathEntry": "請手動輸入目錄路徑。此瀏覽器中檔案瀏覽器不可用。",
+            "batchImportDirectorySelected": "已選擇目錄：{path}",
+            "batchImportManualEntryRequired": "檔案瀏覽器不可用。請手動輸入目錄路徑。",
+            "backToParent": "返回上級目錄",
+            "folders": "資料夾",
+            "folderCount": "{count} 個資料夾",
+            "imageFiles": "圖像檔案",
+            "images": "圖像",
+            "imageCount": "{count} 個圖像",
+            "selectFolder": "選擇此資料夾",
             "errors": {
-                "enterUrls": "[TODO: Translate] Please enter at least one URL or path",
-                "enterDirectory": "[TODO: Translate] Please enter a directory path",
-                "startFailed": "[TODO: Translate] Failed to start import: {message}"
+                "enterUrls": "請輸入至少一個 URL 或路徑",
+                "enterDirectory": "請輸入目錄路徑",
+                "startFailed": "啟動匯入失敗：{message}"
             }
         }
     },
@@ -1495,16 +1497,17 @@
             "processingError": "處理錯誤：{message}",
             "folderBrowserError": "載入資料夾瀏覽器錯誤：{message}",
             "recipeSaveFailed": "儲存配方失敗：{error}",
+            "recipeSaved": "配方儲存成功",
             "importFailed": "匯入失敗：{message}",
             "folderTreeFailed": "載入資料夾樹狀結構失敗",
             "folderTreeError": "載入資料夾樹狀結構錯誤",
-            "batchImportFailed": "[TODO: Translate] Failed to start batch import: {message}",
-            "batchImportCancelling": "[TODO: Translate] Cancelling batch import...",
-            "batchImportCancelFailed": "[TODO: Translate] Failed to cancel batch import: {message}",
-            "batchImportNoUrls": "[TODO: Translate] Please enter at least one URL or file path",
-            "batchImportNoDirectory": "[TODO: Translate] Please enter a directory path",
-            "batchImportBrowseFailed": "[TODO: Translate] Failed to browse directory: {message}",
-            "batchImportDirectorySelected": "[TODO: Translate] Directory selected: {path}"
+            "batchImportFailed": "啟動批量匯入失敗：{message}",
+            "batchImportCancelling": "正在取消批量匯入...",
+            "batchImportCancelFailed": "取消批量匯入失敗：{message}",
+            "batchImportNoUrls": "請輸入至少一個 URL 或檔案路徑",
+            "batchImportNoDirectory": "請輸入目錄路徑",
+            "batchImportBrowseFailed": "瀏覽目錄失敗：{message}",
+            "batchImportDirectorySelected": "已選擇目錄：{path}"
         },
         "models": {
             "noModelsSelected": "未選擇模型",