Update localization files and remove unused files

src/assets/locale/zh/knowledge.json

@@ -0,0 +1,42 @@
+{
+    "addBtn": "添加新知识",
+    "columns": {
+        "title": "标题",
+        "status": "状态",
+        "embeddings": "嵌入模型",
+        "createdAt": "创建于",
+        "action": "操作"
+    },
+    "expandedColumns": {
+        "name": "名称"
+    },
+    "tooltip": {
+        "delete": "删除"
+    },
+    "confirm": {
+        "delete": "您确定要删除此知识吗?"
+    },
+    "deleteSuccess": "知识删除成功",
+    "status": {
+        "pending": "待定",
+        "finished": "已完成",
+        "processing": "处理中"
+    },
+    "addKnowledge": "添加知识",
+    "form": {
+        "title": {
+            "label": "知识标题",
+            "placeholder": "输入知识标题",
+            "required": "知识标题是必需的"
+        },
+        "uploadFile": {
+            "label": "上传文件",
+            "uploadText": "将文件拖放到此处或点击上传",
+            "uploadHint": "支持的文件类型: .pdf, .csv, .txt",
+            "required": "文件是必需的"
+        },
+        "submit": "提交",
+        "success": "知识添加成功"
+    },
+    "noEmbeddingModel": "请先从Ollama设置页面添加一个嵌入模型"
+}