- Fix: Skip empty/whitespace-only text content blocks in chat completions - This resolves Anthropic API errors: - "messages: text content blocks must contain non-whitespace text" - "messages: text content blocks must be non-empty" - Updated version strings in all test files and snapshots 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>