test: cover inferred-window hook output

tests/hooks/suggest-compact.test.js

@@ -694,7 +694,7 @@ function runTests() {
     };
   }
 
-  if (test('suggests compact when context exceeds the 200k-window threshold', () => {
+  if (test('omits the percentage when the context window is assumed', () => {
     const ctx = createContextContext();
     const transcript = writeTranscriptFixture(170000);
     try {
@@ -704,7 +704,7 @@ function runTests() {
       const parsed = JSON.parse(result.stdout);
       const context = parsed.hookSpecificOutput.additionalContext;
       assert.ok(context.includes('Context ~170k tokens'), `Expected token estimate. Got: ${context}`);
-      assert.ok(context.includes('85% of 200k window'), `Expected window percentage. Got: ${context}`);
+      assert.ok(!context.includes('% of'), `Expected no percentage for an assumed window. Got: ${context}`);
     } finally {
       try { fs.unlinkSync(transcript); } catch (_err) { /* ignore */ }
       ctx.cleanup();