fix: knowledge base not delete and websearch rag error (#10595)

* fix: knowledge base not  delete

* fix: websearch rag error

* chore: add comment

src/main/services/KnowledgeService.ts

@@ -29,7 +29,7 @@ import Reranker from '@main/knowledge/reranker/Reranker'
 import { fileStorage } from '@main/services/FileStorage'
 import { windowService } from '@main/services/WindowService'
 import { getDataPath } from '@main/utils'
-import { getAllFiles } from '@main/utils/file'
+import { getAllFiles, sanitizeFilename } from '@main/utils/file'
 import { TraceMethod } from '@mcp-trace/trace-core'
 import { MB } from '@shared/config/constant'
 import type { LoaderReturn } from '@shared/config/types'
@@ -147,11 +147,16 @@ class KnowledgeService {
     }
   }
 
+  private getDbPath = (id: string): string => {
+    // 消除网络搜索requestI d中的特殊字符
+    return path.join(this.storageDir, sanitizeFilename(id, '_'))
+  }
+
   /**
    * Delete knowledge base file
    */
   private deleteKnowledgeFile = (id: string): boolean => {
-    const dbPath = path.join(this.storageDir, id)
+    const dbPath = this.getDbPath(id)
     if (fs.existsSync(dbPath)) {
       try {
         fs.rmSync(dbPath, { recursive: true })
@@ -244,7 +249,8 @@ class KnowledgeService {
       dimensions
     })
     try {
-      const libSqlDb = new LibSqlDb({ path: path.join(this.storageDir, id) })
+      const dbPath = this.getDbPath(id)
+      const libSqlDb = new LibSqlDb({ path: dbPath })
       // Save database instance for later closing
       this.dbInstances.set(id, libSqlDb)