@file don't respect config respectGitIgnore=false (#3382) (#3387)

Co-authored-by: Ryan Fang <ryan.fang@gllue.com>

packages/core/src/services/fileDiscoveryService.ts

@@ -84,6 +84,24 @@ export class FileDiscoveryService {
     return false;
   }
 
+  /**
+   * Unified method to check if a file should be ignored based on filtering options
+   */
+  shouldIgnoreFile(
+    filePath: string,
+    options: FilterFilesOptions = {},
+  ): boolean {
+    const { respectGitIgnore = true, respectGeminiIgnore = true } = options;
+
+    if (respectGitIgnore && this.shouldGitIgnoreFile(filePath)) {
+      return true;
+    }
+    if (respectGeminiIgnore && this.shouldGeminiIgnoreFile(filePath)) {
+      return true;
+    }
+    return false;
+  }
+
   /**
    * Returns loaded patterns from .geminiignore
    */