Release v0.18.1

Changes from 0.18.0 to 0.18.1

What's Changed

• fix(tui): cache plan path before ExitPlanMode arrives by @jnjpng in #1337
• fix(tui): clean up token counting in subagent display by @cpacker in #1344
• fix(tui): auto-approve plan mode in YOLO by @jnjpng in #1345
• fix(tui): trim leading space on word-wrapped continuation lines by @cpacker in #1346
• feat: syntax-highlighted bash commands + fix backfill missing tool calls by @cpacker in #1347
• feat(tui): improved diff rendering with syntax highlighting by @cpacker in #1349

Full Changelog: v0.18.0...v0.18.1