feat: complete release-ready implementation with TypeScript

[doudol]

This PR introduces a new isVEmpty Vue.js plugin that provides an enhanced empty value checking functionality. The implementation includes both a directive and a global method, with full TypeScript support.

Features:

• v-empty directive for declarative empty checks
• Global $isEmpty method for programmatic usage
• Configurable options for strict checking and whitespace handling
• Full TypeScript support with type definitions
• ESM and CommonJS bundle support
• Core isEmpty utility with enhanced type checking
• Vue.js plugin with directive and global method
• TypeScript configurations and type definitions
• Build system using Rollup
• Jest test setup with sample tests
• ESLint configuration for code quality

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