feat: Phase 1 - Emergency Stabilization and Modernization

[jonathanpalma]

Major overhaul to make project compatible with modern React Native:

BREAKING CHANGES:

• Minimum React Native version: 0.74.0+ (was 0.60.0)
• Minimum React version: 18.0.0+ (was 16.8.1)
• Minimum iOS version: 12.0+ (was 9.0+)
• Minimum Android API: 21+ (was 16+)
• Node.js 18+ required for development

🔧 Dependencies & Build System:

• Update React Native to 0.76.0+ with New Architecture support
• Update Android SDK from 28 to 34
• Update Gradle from 3.4.1 to 8.2.0
• Replace deprecated jcenter with mavenCentral
• Add Java 11 compatibility
• Remove maven plugin from Android build
• Add Android namespace declaration

📦 Package Configuration:

• Add comprehensive TypeScript support
• Add modern development tools (ESLint, Prettier, Jest)
• Update build scripts and project structure
• Add testing framework configuration
• Update iOS podspec for React-Core dependency

🎯 TypeScript Implementation:

• Complete rewrite of JavaScript to TypeScript
• Add comprehensive type definitions for all APIs
• Maintain backwards compatibility via index.js wrapper
• Add proper interfaces for TesseractOcr module
• Export all language and level constants with types

🔧 Development Experience:

• Add modern ESLint and Prettier configuration
• Add build, lint, format, and test scripts
• Add development setup documentation
• Update .gitignore for TypeScript builds
• Add proper file structure with src/ and lib/ directories

📋 Addresses Critical Issues:

• Fixes compilation errors with React Native 0.68+ (Issue compile with React Native 0.68.1 2 pbs #131)
• Provides foundation for iOS implementation (Issue is iOS finish yet? Any recent roadmap for iOS #8)
• Enables future New Architecture migration
• Improves developer experience with TypeScript

This phase establishes the foundation for Phase 2 (iOS implementation) and Phase 3 (New Architecture support with TurboModules & Fabric).