Complete repository curation: Add comprehensive documentation for all languages and resources

[Copilot]

This PR transforms the DSA-MASTERY repository into a comprehensive, well-organized learning resource by addressing all gaps in documentation and improving navigation as requested in the curation requirements.

🎯 Key Improvements

Language Support Expansion

• Added Java DSA Guide: Created complete /java/README.md with enterprise-focused content (was missing despite being referenced in main README)
• Enhanced Go DSA Guide: Expanded from 2 lines to comprehensive 6,600+ character guide covering cloud-native development
• Enhanced Rust DSA Guide: Expanded from 2 lines to comprehensive 7,400+ character guide covering memory-safe systems programming
• Maintained existing quality: Preserved well-written JavaScript, Python, and C++ guides while ensuring consistency

Specialized Resource Documentation

Created comprehensive documentation for all special folders:

• Interview Preparation (.interviews/linked-list/): Guide to common linked list interview problems with solving strategies
• Learning Roadmaps (.roadmaps/): Detailed explanation of visual learning paths and timeline suggestions
• Practice Sheets (.sheets/): Complete guide to curated problem collections (Striver, Love Babbar, NeetCode, etc.)
• Algorithm Implementations (~algorithms/Sorting algo/): Comprehensive sorting algorithms guide with complexity analysis
• Programming Games (~games/): Educational games demonstrating DSA concepts in practice
• Additional Resources (~others/): Utility tools and community resources hub

Enhanced Main README

• Modern Navigation: Replaced outdated table with clean, organized navigation sections
• Language-Specific Links: Direct links to all 6 supported languages with descriptions
• Resource Integration: Added extensive sections covering books, courses, YouTube channels, practice platforms, and tools
• Visual Improvements: Added emojis and better formatting for improved readability
• Fixed References: Corrected broken links and updated image paths

Improved Contributing Guidelines

Completely rewrote CONTRIBUTING.md to:

• Match actual repository structure (previous version referenced non-existent folders)
• Provide comprehensive contribution guidelines for all types of contributions
• Include detailed code standards and PR processes
• Add recognition and community guidelines

🔧 Technical Fixes

• Fixed roadmap image path from ./00-dsa-roadmap/ to ./.roadmaps/
• Corrected JavaScript folder reference to use lowercase path
• Ensured all internal links work properly
• Maintained existing folder structure while adding comprehensive documentation

📚 Content Quality

All new documentation includes:

• Language-specific applications: Real-world use cases for each programming language
• Complexity analysis: Time and space complexity discussions
• Learning resources: Curated books, courses, and practice platforms
• Best practices: Coding standards and implementation tips
• Progressive difficulty: Content suitable for beginners to advanced learners

🌟 Impact

This curation makes the repository a true "one-stop resource" for DSA mastery across multiple languages, transforming it from a collection of scattered materials into a cohesive, professionally organized learning platform that supports both self-learners and interview preparation.

The repository now provides clear navigation paths, comprehensive coverage of 6 programming languages, and specialized resources for different learning objectives, fulfilling all requirements specified in the curation request.

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