fix: Address code review feedback and fix lint errors

apps/server/src/routes/worktree/routes/checkout-branch.ts

@@ -37,7 +37,7 @@ export function createCheckoutBranchHandler() {
       }
 
       // Validate branch name (basic validation)
-      const invalidChars = /[\s~^:?*\[\\]/;
+      const invalidChars = /[\s~^:?*[\\]/;
       if (invalidChars.test(branchName)) {
         res.status(400).json({
           success: false,

apps/server/src/routes/worktree/routes/open-in-editor.ts

@@ -125,19 +125,14 @@ export function createOpenInEditorHandler() {
           `Failed to open in editor, falling back to file manager: ${getErrorMessage(editorError)}`
         );
 
-        try {
-          const result = await openInFileManager(worktreePath);
-          res.json({
-            success: true,
-            result: {
-              message: `Opened ${worktreePath} in ${result.editorName}`,
-              editorName: result.editorName,
-            },
-          });
-        } catch (fallbackError) {
-          // Both editor and file manager failed
-          throw fallbackError;
-        }
+        const result = await openInFileManager(worktreePath);
+        res.json({
+          success: true,
+          result: {
+            message: `Opened ${worktreePath} in ${result.editorName}`,
+            editorName: result.editorName,
+          },
+        });
       }
     } catch (error) {
       logError(error, 'Open in editor failed');