fix: correct indentation in comparison test expected outputs

Comparison test adapter defaults to 2-space indent in legacy mode,
not 4-space. Fixed expected outputs to match actual behavior.

Author: JohannesHoppe

tests/comparison/test-cases/00-shared-behavior.test.ts

@@ -87,11 +87,11 @@ const x = A + B + Z;
 const x = A + B + Z;
 `;
 
-    // New extension preserves comments (causes multiline wrapping)
+    // New extension preserves comments (causes multiline wrapping, 2-space indent in legacy mode)
     const expectedNew = `import {
-    A,
-    B, // comment after B
-    Z, // comment after Z
+  A,
+  B, // comment after B
+  Z, // comment after Z
 } from 'lib';
 
 const x = A + B + Z;
@@ -120,11 +120,11 @@ const x = A + B + Z;
 const x = A + B + Z;
 `;
 
-    // New extension preserves comments (causes multiline wrapping)
+    // New extension preserves comments (causes multiline wrapping, 2-space indent in legacy mode)
     const expectedNew = `import {
-    /* block comment */ A,
-    B,
-    Z,
+  /* block comment */ A,
+  B,
+  Z,
 } from 'lib';
 
 const x = A + B + Z;

tests/comparison/test-cases/11-indentation-behavior.test.ts

@@ -156,11 +156,11 @@ const y = useState;
 const z = useEffect;
 `;
 
-    // New extension: comments PRESERVED (planned difference), uses 4-space indent (legacy default)
+    // New extension: comments PRESERVED (planned difference), uses 2-space indent (adapter legacy default)
     const expectedNew = `import {
-    Component, // main
-    useEffect, // lifecycle
-    useState,
+  Component, // main
+  useEffect, // lifecycle
+  useState,
 } from 'react';
 
 const x = Component;