fix(coding-agent): prevent wrapped padding in HTML export

packages/coding-agent/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Fixed
+
+- Fixed HTML export preserving ANSI-renderer trailing padding as extra blank wrapped lines.
+
 ## [0.70.4] - 2026-04-27
 
 ### Fixed

packages/coding-agent/src/core/export-html/template.css

@@ -555,7 +555,7 @@
     }
 
     .ansi-line {
-      white-space: pre-wrap;
+      white-space: pre;
     }
 
     .tool-images {

packages/coding-agent/test/export-html-whitespace.test.ts

@@ -13,6 +13,7 @@ describe("export HTML tool output whitespace", () => {
 		expect(css).toMatch(
 			/\.output-preview > div:not\(\.expand-hint\),\s*\.output-full > div:not\(\.expand-hint\) \{[\s\S]*?white-space:\s*pre-wrap;/,
 		);
+		expect(css).toMatch(/\.ansi-line\s*\{[\s\S]*?white-space:\s*pre;/);
 		expect(css).not.toMatch(/\.output-preview,\s*\.output-full\s*\{[\s\S]*?white-space:\s*pre-wrap;/);
 	});