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-CN.json

@@ -139,7 +139,7 @@
             "viewOnCivitai": "在 CivitAI 查看",
             "notAvailableFromCivitai": "CivitAI 上不可用",
             "viewOnHuggingFace": "在 Hugging Face 查看",
-            "viewOnSource": "[TODO: Translate] View on {source}",
+            "viewOnSource": "在 {source} 查看",
             "sendToWorkflow": "发送到 ComfyUI（点击：追加，Shift+点击：替换）",
             "copyLoRASyntax": "复制 LoRA 语法",
             "checkpointNameCopied": "Checkpoint 名称已复制",
@@ -868,14 +868,14 @@
                 "complete": "自动整理已完成",
                 "error": "错误：{error}"
             },
-            "enrichHfAgent": "AI HF 元数据增强"
+            "enrichHfAgent": "AI 元数据增强"
         },
         "contextMenu": {
             "refreshMetadata": "刷新 CivitAI 数据",
             "checkUpdates": "检查更新",
             "linkModel": "链接模型",
             "linkCivitai": "链接到 CivitAI",
-            "linkModelSource": "[TODO: Translate] Link to Model Source",
+            "linkModelSource": "链接到模型来源",
             "copySyntax": "复制 LoRA 语法",
             "copyFilename": "复制模型文件名",
             "copyRecipeSyntax": "复制配方语法",
@@ -897,7 +897,7 @@
             "viewAllLoras": "查看所有 LoRA",
             "downloadMissingLoras": "下载缺失的 LoRA",
             "deleteRecipe": "删除配方",
-            "enrichHfAgent": "AI HF 元数据增强"
+            "enrichHfAgent": "AI 元数据增强"
         }
     },
     "recipes": {
@@ -1598,16 +1598,16 @@
             "root": "根目录"
         },
         "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": "链接到模型来源",
+            "infoText": "粘贴模型页面 URL 以关联此模型与其来源。关联后可对 Hugging Face 和 ModelScope 模型启用 AI 元数据增强。",
+            "urlLabel": "模型页面 URL：",
+            "urlPlaceholder": "https://huggingface.co/user/repo",
+            "helpText": "请输入完整的模型页面 URL。支持的站点：",
+            "enrichNote": "AI 增强需要可读取的模型卡。未提供模型卡的站点（目前为 TensorArt）只能建立链接。",
+            "urlRequired": "请输入模型页面 URL。",
+            "invalidUrl": "URL 不受支持。支持的站点：Hugging Face、ModelScope、TensorArt。",
+            "linking": "正在链接模型来源...",
+            "confirmAction": "保存并链接"
         },
         "relinkCivitai": {
             "title": "重新关联到 CivitAI",
@@ -1852,7 +1852,7 @@
                 "empty": "该模型还没有版本历史。",
                 "error": "加载版本失败。",
                 "missingModelId": "该模型缺少 CivitAI 模型 ID。",
-                "sourceGroupInfo": "[TODO: Translate] This is a {source} model group. Open the library to see all versions in the grid.",
+                "sourceGroupInfo": "这是一个 {source} 模型组。打开库页面即可在网格中查看所有版本。",
                 "confirm": {
                     "delete": "从库中删除此版本？"
                 },
@@ -2489,8 +2489,8 @@
             "fetchMetadataFirst": "请先从 CivitAI 获取元数据",
             "noCivitaiInfo": "无 CivitAI 信息",
             "missingHash": "模型哈希不可用",
-            "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": "请先将此模型链接到模型来源（链接模型 → 链接到模型来源）",
+            "enrichUnsupportedSource": "{source} 模型不支持 AI 增强"
         },
         "exampleImages": {
             "pathUpdated": "示例图片路径更新成功",