Fix package configuration issues and setup GitHub Packages publishing

[Copilot]

This PR addresses several configuration issues found in the JSON parser repository and properly sets it up as a GitHub package.

Issues Fixed

1. Version Consistency

Fixed version mismatch between pyproject.toml (0.1.1) and __init__.py (0.1.0) to ensure consistent versioning across the package.

2. GitHub Packages Configuration

The GitHub Actions workflow had an incorrect repository URL format for GitHub Packages:

# Before (incorrect)
repository_url: https://pypi.pkg.github.com/Anand-0037

# After (correct)  
repository_url: https://pypi.pkg.github.com/

3. Package Metadata Enhancement

• Added comprehensive project URLs (homepage, bug tracker, changelog)
• Enhanced package description and keywords
• Added support for Python 3.12
• Improved project classifiers for better discoverability

4. File Organization

• Fixed filename typo: CHANNELOG.md → CHANGELOG.md
• Updated CHANGELOG with proper formatting and version history
• Enhanced .gitignore with comprehensive Python project exclusions

5. Documentation Improvements

Completely rewrote the README to include:

• Clear installation instructions for both PyPI and GitHub Packages
• Comprehensive feature documentation
• Usage examples with CLI options
• Detailed explanation of comment support (a unique feature)
• Better formatting and professional appearance

6. CI/CD Pipeline

Added a new GitHub Actions workflow (test.yml) that:

• Tests the package on Python 3.11 and 3.12
• Verifies installation and CLI functionality
• Runs the comprehensive test suite

Verification

All functionality has been thoroughly tested:

• ✅ All existing tests pass
• ✅ CLI tool works correctly with verbose and standard modes
• ✅ Comment parsing (single-line // and multi-line /* */) functions properly
• ✅ Complex JSON structures with numbers, strings, arrays, and objects parse correctly
• ✅ Error handling provides accurate line numbers for various error types
• ✅ Package installs successfully in development mode

Code Quality Assessment

The core JSON parser implementation is excellent with:

• Proper lexical and syntactic analysis
• Comprehensive error handling with line numbers
• Support for comments (uncommon in JSON parsers)
• Good separation of concerns (lexer, parser, CLI)
• Robust handling of edge cases

No errors were found in the core parsing functionality - only configuration and packaging issues that have now been resolved.

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