feat(deeplink): display all four Claude model fields in import dialog

- Show haiku/sonnet/opus/multiModel fields conditionally for Claude
- Maintain single model field display for Codex and Gemini
- Add i18n translations for new model field labels (zh/en)

src/i18n/locales/en.json

@@ -749,6 +749,10 @@
     "endpoint": "API Endpoint",
     "apiKey": "API Key",
     "model": "Model",
+    "haikuModel": "Haiku Model",
+    "sonnetModel": "Sonnet Model",
+    "opusModel": "Opus Model",
+    "multiModel": "Multi-Modal Model",
     "notes": "Notes",
     "import": "Import",
     "importing": "Importing...",

src/i18n/locales/zh.json

@@ -749,6 +749,10 @@
     "endpoint": "API 端点",
     "apiKey": "API 密钥",
     "model": "模型",
+    "haikuModel": "Haiku 模型",
+    "sonnetModel": "Sonnet 模型",
+    "opusModel": "Opus 模型",
+    "multiModel": "多模态模型",
     "notes": "备注",
     "import": "导入",
     "importing": "导入中...",