i18n: translate model-source strings into 9 locales

Complete the 15 [TODO: Translate] keys the model-source feature left behind
(modelCard.actions.viewOnSource, loras.contextMenu.linkModelSource,
modals.linkModelSource.*, modals.model.versions.sourceGroupInfo,
toast.contextMenu.enrichNeedsSource, toast.contextMenu.enrichUnsupportedSource),
and refresh the two enrichment labels that feature made stale.

- Brands stay Latin per R3: Hugging Face / ModelScope / TensorArt appear
  verbatim, and {source} is substituted by the caller at runtime, so no locale
  embeds a transliterated platform name. The placeholder-URL value
  (modals.linkModelSource.urlPlaceholder) stays byte-identical to en.json per
  the §6 URL exception.
- "model source" / "model page" / "model card" are new nouns and each locale
  gets exactly one rendering; "AI enrichment" reuses the noun already in each
  file from the previous enrichHfAgent copy. All of it is recorded in §2.
- modelCard.actions.viewOnSource follows each locale's existing
  viewOnHuggingFace pattern rather than the neighbouring viewOnCivitai one, so
  de/ru/he/ja/ko do not gain a third "View on ..." shape.
- loras.contextMenu.enrichHfAgent and loras.bulkOperations.enrichHfAgent read
  "AI HF metadata" in all nine locales. The feature invalidated that by also
  covering ModelScope, so both values drop the HF qualifier (the key names keep
  the historical Hf, and the guidelines now say so).
- Script conventions: fr keeps ASCII apostrophes and a space before ':' (the
  file is 351 ASCII vs 26 U+2019 and the modal being replaced was ASCII); ko
  keeps ASCII ':' and '()' (188 vs 6); CJK locales keep full-width punctuation;
  every ellipsis is ASCII '...'. Placeholders are verbatim per R2.
- modals.linkModelSource.enrichNote is phrased as a rule with the current
  exception in parentheses, so the guidelines call that out for whoever adds
  the next link-only source.

pytest tests/i18n: 20 passed, and scripts/sync_translation_keys.py --dry-run is
a no-op (no missing and no stale keys). Frontend: 1130 JS + 91 Vue passed.
Backend: 2815 passed. en.json is untouched by this commit.

locales/zh-TW.json

@@ -139,7 +139,7 @@
             "viewOnCivitai": "在 CivitAI 查看",
             "notAvailableFromCivitai": "CivitAI 不提供",
             "viewOnHuggingFace": "在 Hugging Face 查看",
-            "viewOnSource": "[TODO: Translate] View on {source}",
+            "viewOnSource": "在 {source} 查看",
             "sendToWorkflow": "傳送到 ComfyUI（點擊：附加，Shift+點擊：取代）",
             "copyLoRASyntax": "複製 LoRA 語法",
             "checkpointNameCopied": "Checkpoint 名稱已複製",
@@ -868,14 +868,14 @@
                 "complete": "自動整理完成",
                 "error": "錯誤：{error}"
             },
-            "enrichHfAgent": "AI HF 中繼資料增強"
+            "enrichHfAgent": "AI 中繼資料增強"
         },
         "contextMenu": {
             "refreshMetadata": "刷新 CivitAI 資料",
             "checkUpdates": "檢查更新",
             "linkModel": "連結模型",
             "linkCivitai": "連結到 CivitAI",
-            "linkModelSource": "[TODO: Translate] Link to Model Source",
+            "linkModelSource": "連結到模型來源",
             "copySyntax": "複製 LoRA 語法",
             "copyFilename": "複製模型檔名",
             "copyRecipeSyntax": "複製配方語法",
@@ -897,7 +897,7 @@
             "viewAllLoras": "檢視全部 LoRA",
             "downloadMissingLoras": "下載缺少的 LoRA",
             "deleteRecipe": "刪除配方",
-            "enrichHfAgent": "AI HF 中繼資料增強"
+            "enrichHfAgent": "AI 中繼資料增強"
         }
     },
     "recipes": {
@@ -1598,16 +1598,16 @@
             "root": "根目錄"
         },
         "linkModelSource": {
-            "title": "[TODO: Translate] Link to Model Source",
-            "infoText": "[TODO: Translate] Paste the model page URL to associate this model with its source. Linking enables AI-powered metadata enrichment for Hugging Face and ModelScope models.",
-            "urlLabel": "[TODO: Translate] Model Page URL:",
-            "urlPlaceholder": "[TODO: Translate] https://huggingface.co/user/repo",
-            "helpText": "[TODO: Translate] Enter the full URL of the model page. Supported sites:",
-            "enrichNote": "[TODO: Translate] Note: AI metadata enrichment requires an accessible model card. TensorArt pages are not readable by the backend, so only the link is stored.",
-            "urlRequired": "[TODO: Translate] Please enter a model page URL.",
-            "invalidUrl": "[TODO: Translate] Unsupported URL. Supported sites: Hugging Face, ModelScope, TensorArt.",
-            "linking": "[TODO: Translate] Linking model source...",
-            "confirmAction": "[TODO: Translate] Save & Link"
+            "title": "連結到模型來源",
+            "infoText": "貼上模型頁面 URL 以關聯此模型與其來源。關聯後可對 Hugging Face 和 ModelScope 模型啟用 AI 中繼資料增強。",
+            "urlLabel": "模型頁面 URL：",
+            "urlPlaceholder": "https://huggingface.co/user/repo",
+            "helpText": "請輸入完整的模型頁面 URL。支援的站點：",
+            "enrichNote": "AI 增強需要可讀取的模型卡。未提供模型卡的站點（目前為 TensorArt）只能建立連結。",
+            "urlRequired": "請輸入模型頁面 URL。",
+            "invalidUrl": "URL 不受支援。支援的站點：Hugging Face、ModelScope、TensorArt。",
+            "linking": "正在連結模型來源...",
+            "confirmAction": "儲存並連結"
         },
         "relinkCivitai": {
             "title": "重新連結至 CivitAI",
@@ -1852,7 +1852,7 @@
                 "empty": "此模型尚無版本歷史。",
                 "error": "載入版本失敗。",
                 "missingModelId": "此模型缺少 CivitAI 模型 ID。",
-                "sourceGroupInfo": "[TODO: Translate] This is a {source} model group. Open the library to see all versions in the grid.",
+                "sourceGroupInfo": "這是一個 {source} 模型組。打開庫頁面即可在網格中查看所有版本。",
                 "confirm": {
                     "delete": "要從庫中刪除此版本嗎？"
                 },
@@ -2489,8 +2489,8 @@
             "fetchMetadataFirst": "請先從 CivitAI 取得 metadata",
             "noCivitaiInfo": "無 CivitAI 資訊",
             "missingHash": "模型雜湊不可用",
-            "enrichNeedsSource": "[TODO: Translate] Link this model to a model source first (Link Model → Link to Model Source)",
-            "enrichUnsupportedSource": "[TODO: Translate] AI enrichment is not available for {source} models"
+            "enrichNeedsSource": "請先將此模型連結到模型來源（連結模型 → 連結到模型來源）",
+            "enrichUnsupportedSource": "{source} 模型不支援 AI 增強"
         },
         "exampleImages": {
             "pathUpdated": "範例圖片路徑已更新",