Bug Fixes
- color: degrade empty parent stack to transparent, chain fillers (8a9417c)
- color: remove stray blank line failing golangci-lint whitespace check (218d736), closes #7713
- prompt: resolve parentBackground in a block's own filler (0bc830f)
- terminal: stop parent color stack growing unbounded (873e98d)
Performance Improvements
- shell: read pwsh streaming records in chunks, not bytes (6fd2ad2)