fix(agent): fix rg args ordering in function reference search tool

The --type-add and --type options were placed after the path argument,
causing ripgrep to treat them as additional paths rather than flags.
Moved option flags before the -e pattern and path arguments.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

src/review/tools/function-reference-search-tool.ts

@@ -80,12 +80,8 @@ export function createFunctionReferenceSearchTool(sandbox: SandboxExec): Tool {
         const pattern = task.patterns.join('|');
         const args = [
           '--json',
-          // 移除 --ignore-case，保持大小写敏感（大多数语言都是case-sensitive）
           '--max-count',
           String(max_results || 30),
-          '-e',
-          pattern,
-          context.workspacePath,
         ];
 
         if (file_types && file_types.length > 0) {
@@ -93,6 +89,9 @@ export function createFunctionReferenceSearchTool(sandbox: SandboxExec): Tool {
           args.push('--type', 'custom');
         }
 
+        // -e pattern 和路径必须在所有选项之后
+        args.push('-e', pattern, context.workspacePath);
+
         try {
           const result = await sandbox.run('rg', args, {
             cwd: context.workspacePath,