Add complete job search functionality with proxy support and security…

[KeyArgo]

Enhanced Job Search with Proxy Support and Security Improvements

Changes Made

• Added proxy support with verification and usage tracking
• Implemented secure configuration management
• Added setup helper utilities
• Improved error handling and type safety
• Added documentation and security best practices

New Files

• config_sensitive_template.py: Template for secure configuration
• setup_config.py: Helper script for configuration setup
• proxy_utils.py: Proxy verification and monitoring utilities
• Updated job_search.py and job_search_advanced.py with improvements

Security Features

• Secure proxy credential management
• Traffic monitoring and usage tracking
• Configuration templates with security best practices
• Improved error handling for proxy failures

Testing Done

• Verified proxy functionality
• Tested configuration setup
• Confirmed no sensitive data exposure
• Validated search results with and without proxy

Notes for Reviewers

• Configuration files are templated to prevent credential exposure
• Added .gitignore patterns for sensitive files
• Implemented proxy verification before searches
• Added usage tracking for proxy data consumption

Related Issues

• Addresses proxy security concerns
• Improves configuration management
• Enhances error handling

[KeyArgo]

Closing this PR as it contained sensitive data. Will submit a new clean PR.