Replace text truncation with SVG clipPath overflow prevention

- Remove truncateText calculation-based approach for handling text overflow
- Implement SVG clipPath for precise pixel-based text clipping
- Apply clipPath to PR Title, PRs Number, and Repository columns
- Support multi-language characters without visual width calculations
- Clean up unused truncateText utility function
- Update project version to 1.0.1

🤖 Generated with [Claude Code](https://claude.ai/code)

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

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