Remove generated e2e test outputs and update gitignore

- Ignore entire test/e2e/output/ directory for generated artifacts
- Update screenshots with latest panel renders

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -3,9 +3,10 @@
 target/
 *.jar
 
-# Debug test files
+# VHS test outputs (generated artifacts, not needed in repo)
+test/e2e/output/
 test/e2e/debug.tape
-test/e2e/output/debug.*
+test/e2e/aspect-ratio/*.gif
 
 # Nested test output directories (created by VHS when run from wrong directory)
 test/e2e/test/