v0.3.2

Changelog

• 2be40ae chore(docs): update baseline version to v0.3.1 in README files
• 959d81b feat(help): implement tabbed help interface with navigation and content organization
• 9cd8e35 feat(tui): enhance overlay rendering and add selection colors for improved UI
• 748759b feat: add theme switching command and enhance slash command submission
• 4acde00 feat: implement theme switching and preview functionality