Fix virtual env won't load on linux (#866)

* reset env in uv shell on linux

* update test

* revert env reset

* update test expectation

* target linux explicitly, preserve original fallback

src/shell/util.ts

@@ -13,5 +13,12 @@ export function getDefaultShell(): string {
 }
 
 export function getDefaultShellArgs(): string[] {
-  return os.platform() === 'darwin' ? ['-df'] : [];
+  switch (os.platform()) {
+    case 'darwin':
+      return ['-df']; // Prevent loading initialization files for zsh
+    case 'linux':
+      return ['--noprofile', '--norc'];
+    default:
+      return [];
+  }
 }

tests/unit/shell/util.test.ts

@@ -35,9 +35,9 @@ describe('shell utilities', () => {
       expect(getDefaultShellArgs()).toEqual([]);
     });
 
-    it('should return empty array on Linux', () => {
+    it('should return noprofile and norc on Linux', () => {
       vi.spyOn(os, 'platform').mockReturnValue('linux');
-      expect(getDefaultShellArgs()).toEqual([]);
+      expect(getDefaultShellArgs()).toEqual(['--noprofile', '--norc']);
     });
   });
 });